mirror of
https://github.com/CyC2018/CS-Notes.git
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add some source code
This commit is contained in:
CyC2018
2984
notes/src/String.java
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2984
notes/src/String.java
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File diff suppressed because it is too large
Load Diff
527
notes/src/StringBuffer.java
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527
notes/src/StringBuffer.java
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@ -0,0 +1,527 @@
|
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package java.lang;
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public final class StringBuffer
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extends AbstractStringBuilder
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implements java.io.Serializable, CharSequence
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||||
{
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/** use serialVersionUID from JDK 1.0.2 for interoperability */
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static final long serialVersionUID = 3388685877147921107L;
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/**
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||||
* Constructs a string buffer with no characters in it and an
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* initial capacity of 16 characters.
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*/
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public StringBuffer() {
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super(16);
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}
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/**
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* Constructs a string buffer with no characters in it and
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* the specified initial capacity.
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*
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* @param capacity the initial capacity.
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||||
* @exception NegativeArraySizeException if the <code>capacity</code>
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* argument is less than <code>0</code>.
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*/
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public StringBuffer(int capacity) {
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super(capacity);
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}
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/**
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* Constructs a string buffer initialized to the contents of the
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* specified string. The initial capacity of the string buffer is
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* <code>16</code> plus the length of the string argument.
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*
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* @param str the initial contents of the buffer.
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* @exception NullPointerException if <code>str</code> is <code>null</code>
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*/
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public StringBuffer(String str) {
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super(str.length() + 16);
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append(str);
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}
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/**
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* Constructs a string buffer that contains the same characters
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* as the specified <code>CharSequence</code>. The initial capacity of
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* the string buffer is <code>16</code> plus the length of the
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* <code>CharSequence</code> argument.
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* <p>
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* If the length of the specified <code>CharSequence</code> is
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* less than or equal to zero, then an empty buffer of capacity
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* <code>16</code> is returned.
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*
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* @param seq the sequence to copy.
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* @exception NullPointerException if <code>seq</code> is <code>null</code>
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* @since 1.5
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*/
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public StringBuffer(CharSequence seq) {
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this(seq.length() + 16);
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append(seq);
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}
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public synchronized int length() {
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return count;
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}
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public synchronized int capacity() {
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return value.length;
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}
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public synchronized void ensureCapacity(int minimumCapacity) {
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if (minimumCapacity > value.length) {
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expandCapacity(minimumCapacity);
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}
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}
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/**
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* @since 1.5
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*/
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public synchronized void trimToSize() {
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super.trimToSize();
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}
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/**
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* @throws IndexOutOfBoundsException {@inheritDoc}
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||||
* @see #length()
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||||
*/
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||||
public synchronized void setLength(int newLength) {
|
||||
super.setLength(newLength);
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}
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/**
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* @throws IndexOutOfBoundsException {@inheritDoc}
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* @see #length()
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||||
*/
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||||
public synchronized char charAt(int index) {
|
||||
if ((index < 0) || (index >= count))
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||||
throw new StringIndexOutOfBoundsException(index);
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return value[index];
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||||
}
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|
||||
/**
|
||||
* @since 1.5
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||||
*/
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||||
public synchronized int codePointAt(int index) {
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||||
return super.codePointAt(index);
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||||
}
|
||||
|
||||
/**
|
||||
* @since 1.5
|
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*/
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||||
public synchronized int codePointBefore(int index) {
|
||||
return super.codePointBefore(index);
|
||||
}
|
||||
|
||||
/**
|
||||
* @since 1.5
|
||||
*/
|
||||
public synchronized int codePointCount(int beginIndex, int endIndex) {
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||||
return super.codePointCount(beginIndex, endIndex);
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||||
}
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||||
|
||||
/**
|
||||
* @since 1.5
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||||
*/
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||||
public synchronized int offsetByCodePoints(int index, int codePointOffset) {
|
||||
return super.offsetByCodePoints(index, codePointOffset);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public synchronized void getChars(int srcBegin, int srcEnd, char[] dst,
|
||||
int dstBegin)
|
||||
{
|
||||
super.getChars(srcBegin, srcEnd, dst, dstBegin);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
* @see #length()
|
||||
*/
|
||||
public synchronized void setCharAt(int index, char ch) {
|
||||
if ((index < 0) || (index >= count))
|
||||
throw new StringIndexOutOfBoundsException(index);
|
||||
value[index] = ch;
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||||
}
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||||
|
||||
public synchronized StringBuffer append(Object obj) {
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||||
super.append(String.valueOf(obj));
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||||
return this;
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||||
}
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||||
|
||||
public synchronized StringBuffer append(String str) {
|
||||
super.append(str);
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||||
return this;
|
||||
}
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||||
|
||||
/**
|
||||
* Appends the specified <tt>StringBuffer</tt> to this sequence.
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||||
* <p>
|
||||
* The characters of the <tt>StringBuffer</tt> argument are appended,
|
||||
* in order, to the contents of this <tt>StringBuffer</tt>, increasing the
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||||
* length of this <tt>StringBuffer</tt> by the length of the argument.
|
||||
* If <tt>sb</tt> is <tt>null</tt>, then the four characters
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||||
* <tt>"null"</tt> are appended to this <tt>StringBuffer</tt>.
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* <p>
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||||
* Let <i>n</i> be the length of the old character sequence, the one
|
||||
* contained in the <tt>StringBuffer</tt> just prior to execution of the
|
||||
* <tt>append</tt> method. Then the character at index <i>k</i> in
|
||||
* the new character sequence is equal to the character at index <i>k</i>
|
||||
* in the old character sequence, if <i>k</i> is less than <i>n</i>;
|
||||
* otherwise, it is equal to the character at index <i>k-n</i> in the
|
||||
* argument <code>sb</code>.
|
||||
* <p>
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||||
* This method synchronizes on <code>this</code> (the destination)
|
||||
* object but does not synchronize on the source (<code>sb</code>).
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||||
*
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||||
* @param sb the <tt>StringBuffer</tt> to append.
|
||||
* @return a reference to this object.
|
||||
* @since 1.4
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||||
*/
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||||
public synchronized StringBuffer append(StringBuffer sb) {
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||||
super.append(sb);
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||||
return this;
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||||
}
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||||
|
||||
|
||||
/**
|
||||
* Appends the specified <code>CharSequence</code> to this
|
||||
* sequence.
|
||||
* <p>
|
||||
* The characters of the <code>CharSequence</code> argument are appended,
|
||||
* in order, increasing the length of this sequence by the length of the
|
||||
* argument.
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||||
*
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||||
* <p>The result of this method is exactly the same as if it were an
|
||||
* invocation of this.append(s, 0, s.length());
|
||||
*
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||||
* <p>This method synchronizes on this (the destination)
|
||||
* object but does not synchronize on the source (<code>s</code>).
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||||
*
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||||
* <p>If <code>s</code> is <code>null</code>, then the four characters
|
||||
* <code>"null"</code> are appended.
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||||
*
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||||
* @param s the <code>CharSequence</code> to append.
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||||
* @return a reference to this object.
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||||
* @since 1.5
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||||
*/
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||||
public StringBuffer append(CharSequence s) {
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||||
// Note, synchronization achieved via other invocations
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||||
if (s == null)
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||||
s = "null";
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||||
if (s instanceof String)
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||||
return this.append((String)s);
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||||
if (s instanceof StringBuffer)
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||||
return this.append((StringBuffer)s);
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||||
return this.append(s, 0, s.length());
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||||
}
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||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.5
|
||||
*/
|
||||
public synchronized StringBuffer append(CharSequence s, int start, int end)
|
||||
{
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||||
super.append(s, start, end);
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||||
return this;
|
||||
}
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||||
|
||||
public synchronized StringBuffer append(char[] str) {
|
||||
super.append(str);
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||||
return this;
|
||||
}
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||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
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||||
public synchronized StringBuffer append(char[] str, int offset, int len) {
|
||||
super.append(str, offset, len);
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||||
return this;
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||||
}
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||||
|
||||
public synchronized StringBuffer append(boolean b) {
|
||||
super.append(b);
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||||
return this;
|
||||
}
|
||||
|
||||
public synchronized StringBuffer append(char c) {
|
||||
super.append(c);
|
||||
return this;
|
||||
}
|
||||
|
||||
public synchronized StringBuffer append(int i) {
|
||||
super.append(i);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @since 1.5
|
||||
*/
|
||||
public synchronized StringBuffer appendCodePoint(int codePoint) {
|
||||
super.appendCodePoint(codePoint);
|
||||
return this;
|
||||
}
|
||||
|
||||
public synchronized StringBuffer append(long lng) {
|
||||
super.append(lng);
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||||
return this;
|
||||
}
|
||||
|
||||
public synchronized StringBuffer append(float f) {
|
||||
super.append(f);
|
||||
return this;
|
||||
}
|
||||
|
||||
public synchronized StringBuffer append(double d) {
|
||||
super.append(d);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized StringBuffer delete(int start, int end) {
|
||||
super.delete(start, end);
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||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized StringBuffer deleteCharAt(int index) {
|
||||
super.deleteCharAt(index);
|
||||
return this;
|
||||
}
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||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized StringBuffer replace(int start, int end, String str) {
|
||||
super.replace(start, end, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized String substring(int start) {
|
||||
return substring(start, count);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.4
|
||||
*/
|
||||
public synchronized CharSequence subSequence(int start, int end) {
|
||||
return super.substring(start, end);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized String substring(int start, int end) {
|
||||
return super.substring(start, end);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.2
|
||||
*/
|
||||
public synchronized StringBuffer insert(int index, char[] str, int offset,
|
||||
int len)
|
||||
{
|
||||
super.insert(index, str, offset, len);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public synchronized StringBuffer insert(int offset, Object obj) {
|
||||
super.insert(offset, String.valueOf(obj));
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public synchronized StringBuffer insert(int offset, String str) {
|
||||
super.insert(offset, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public synchronized StringBuffer insert(int offset, char[] str) {
|
||||
super.insert(offset, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.5
|
||||
*/
|
||||
public StringBuffer insert(int dstOffset, CharSequence s) {
|
||||
// Note, synchronization achieved via other invocations
|
||||
if (s == null)
|
||||
s = "null";
|
||||
if (s instanceof String)
|
||||
return this.insert(dstOffset, (String)s);
|
||||
return this.insert(dstOffset, s, 0, s.length());
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
* @since 1.5
|
||||
*/
|
||||
public synchronized StringBuffer insert(int dstOffset, CharSequence s,
|
||||
int start, int end)
|
||||
{
|
||||
super.insert(dstOffset, s, start, end);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuffer insert(int offset, boolean b) {
|
||||
return insert(offset, String.valueOf(b));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public synchronized StringBuffer insert(int offset, char c) {
|
||||
super.insert(offset, c);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuffer insert(int offset, int i) {
|
||||
return insert(offset, String.valueOf(i));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuffer insert(int offset, long l) {
|
||||
return insert(offset, String.valueOf(l));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuffer insert(int offset, float f) {
|
||||
return insert(offset, String.valueOf(f));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuffer insert(int offset, double d) {
|
||||
return insert(offset, String.valueOf(d));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
* @since 1.4
|
||||
*/
|
||||
public int indexOf(String str) {
|
||||
return indexOf(str, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
* @since 1.4
|
||||
*/
|
||||
public synchronized int indexOf(String str, int fromIndex) {
|
||||
return String.indexOf(value, 0, count,
|
||||
str.toCharArray(), 0, str.length(), fromIndex);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
* @since 1.4
|
||||
*/
|
||||
public int lastIndexOf(String str) {
|
||||
// Note, synchronization achieved via other invocations
|
||||
return lastIndexOf(str, count);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
* @since 1.4
|
||||
*/
|
||||
public synchronized int lastIndexOf(String str, int fromIndex) {
|
||||
return String.lastIndexOf(value, 0, count,
|
||||
str.toCharArray(), 0, str.length(), fromIndex);
|
||||
}
|
||||
|
||||
/**
|
||||
* @since JDK1.0.2
|
||||
*/
|
||||
public synchronized StringBuffer reverse() {
|
||||
super.reverse();
|
||||
return this;
|
||||
}
|
||||
|
||||
public synchronized String toString() {
|
||||
return new String(value, 0, count);
|
||||
}
|
||||
|
||||
/**
|
||||
* Serializable fields for StringBuffer.
|
||||
*
|
||||
* @serialField value char[]
|
||||
* The backing character array of this StringBuffer.
|
||||
* @serialField count int
|
||||
* The number of characters in this StringBuffer.
|
||||
* @serialField shared boolean
|
||||
* A flag indicating whether the backing array is shared.
|
||||
* The value is ignored upon deserialization.
|
||||
*/
|
||||
private static final java.io.ObjectStreamField[] serialPersistentFields =
|
||||
{
|
||||
new java.io.ObjectStreamField("value", char[].class),
|
||||
new java.io.ObjectStreamField("count", Integer.TYPE),
|
||||
new java.io.ObjectStreamField("shared", Boolean.TYPE),
|
||||
};
|
||||
|
||||
/**
|
||||
* readObject is called to restore the state of the StringBuffer from
|
||||
* a stream.
|
||||
*/
|
||||
private synchronized void writeObject(java.io.ObjectOutputStream s)
|
||||
throws java.io.IOException {
|
||||
java.io.ObjectOutputStream.PutField fields = s.putFields();
|
||||
fields.put("value", value);
|
||||
fields.put("count", count);
|
||||
fields.put("shared", false);
|
||||
s.writeFields();
|
||||
}
|
||||
|
||||
/**
|
||||
* readObject is called to restore the state of the StringBuffer from
|
||||
* a stream.
|
||||
*/
|
||||
private void readObject(java.io.ObjectInputStream s)
|
||||
throws java.io.IOException, ClassNotFoundException {
|
||||
java.io.ObjectInputStream.GetField fields = s.readFields();
|
||||
value = (char[])fields.get("value", null);
|
||||
count = fields.get("count", 0);
|
||||
}
|
||||
}
|
||||
369
notes/src/StringBuilder.java
Normal file
369
notes/src/StringBuilder.java
Normal file
@ -0,0 +1,369 @@
|
||||
|
||||
package java.lang;
|
||||
|
||||
public final class StringBuilder
|
||||
extends AbstractStringBuilder
|
||||
implements java.io.Serializable, CharSequence
|
||||
{
|
||||
|
||||
/** use serialVersionUID for interoperability */
|
||||
static final long serialVersionUID = 4383685877147921099L;
|
||||
|
||||
/**
|
||||
* Constructs a string builder with no characters in it and an
|
||||
* initial capacity of 16 characters.
|
||||
*/
|
||||
public StringBuilder() {
|
||||
super(16);
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a string builder with no characters in it and an
|
||||
* initial capacity specified by the <code>capacity</code> argument.
|
||||
*
|
||||
* @param capacity the initial capacity.
|
||||
* @throws NegativeArraySizeException if the <code>capacity</code>
|
||||
* argument is less than <code>0</code>.
|
||||
*/
|
||||
public StringBuilder(int capacity) {
|
||||
super(capacity);
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a string builder initialized to the contents of the
|
||||
* specified string. The initial capacity of the string builder is
|
||||
* <code>16</code> plus the length of the string argument.
|
||||
*
|
||||
* @param str the initial contents of the buffer.
|
||||
* @throws NullPointerException if <code>str</code> is <code>null</code>
|
||||
*/
|
||||
public StringBuilder(String str) {
|
||||
super(str.length() + 16);
|
||||
append(str);
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a string builder that contains the same characters
|
||||
* as the specified <code>CharSequence</code>. The initial capacity of
|
||||
* the string builder is <code>16</code> plus the length of the
|
||||
* <code>CharSequence</code> argument.
|
||||
*
|
||||
* @param seq the sequence to copy.
|
||||
* @throws NullPointerException if <code>seq</code> is <code>null</code>
|
||||
*/
|
||||
public StringBuilder(CharSequence seq) {
|
||||
this(seq.length() + 16);
|
||||
append(seq);
|
||||
}
|
||||
|
||||
public StringBuilder append(Object obj) {
|
||||
return append(String.valueOf(obj));
|
||||
}
|
||||
|
||||
public StringBuilder append(String str) {
|
||||
super.append(str);
|
||||
return this;
|
||||
}
|
||||
|
||||
// Appends the specified string builder to this sequence.
|
||||
private StringBuilder append(StringBuilder sb) {
|
||||
if (sb == null)
|
||||
return append("null");
|
||||
int len = sb.length();
|
||||
int newcount = count + len;
|
||||
if (newcount > value.length)
|
||||
expandCapacity(newcount);
|
||||
sb.getChars(0, len, value, count);
|
||||
count = newcount;
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Appends the specified <tt>StringBuffer</tt> to this sequence.
|
||||
* <p>
|
||||
* The characters of the <tt>StringBuffer</tt> argument are appended,
|
||||
* in order, to this sequence, increasing the
|
||||
* length of this sequence by the length of the argument.
|
||||
* If <tt>sb</tt> is <tt>null</tt>, then the four characters
|
||||
* <tt>"null"</tt> are appended to this sequence.
|
||||
* <p>
|
||||
* Let <i>n</i> be the length of this character sequence just prior to
|
||||
* execution of the <tt>append</tt> method. Then the character at index
|
||||
* <i>k</i> in the new character sequence is equal to the character at
|
||||
* index <i>k</i> in the old character sequence, if <i>k</i> is less than
|
||||
* <i>n</i>; otherwise, it is equal to the character at index <i>k-n</i>
|
||||
* in the argument <code>sb</code>.
|
||||
*
|
||||
* @param sb the <tt>StringBuffer</tt> to append.
|
||||
* @return a reference to this object.
|
||||
*/
|
||||
public StringBuilder append(StringBuffer sb) {
|
||||
super.append(sb);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
*/
|
||||
public StringBuilder append(CharSequence s) {
|
||||
if (s == null)
|
||||
s = "null";
|
||||
if (s instanceof String)
|
||||
return this.append((String)s);
|
||||
if (s instanceof StringBuffer)
|
||||
return this.append((StringBuffer)s);
|
||||
if (s instanceof StringBuilder)
|
||||
return this.append((StringBuilder)s);
|
||||
return this.append(s, 0, s.length());
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder append(CharSequence s, int start, int end) {
|
||||
super.append(s, start, end);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(char[] str) {
|
||||
super.append(str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder append(char[] str, int offset, int len) {
|
||||
super.append(str, offset, len);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(boolean b) {
|
||||
super.append(b);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(char c) {
|
||||
super.append(c);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(int i) {
|
||||
super.append(i);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(long lng) {
|
||||
super.append(lng);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(float f) {
|
||||
super.append(f);
|
||||
return this;
|
||||
}
|
||||
|
||||
public StringBuilder append(double d) {
|
||||
super.append(d);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @since 1.5
|
||||
*/
|
||||
public StringBuilder appendCodePoint(int codePoint) {
|
||||
super.appendCodePoint(codePoint);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder delete(int start, int end) {
|
||||
super.delete(start, end);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder deleteCharAt(int index) {
|
||||
super.deleteCharAt(index);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder replace(int start, int end, String str) {
|
||||
super.replace(start, end, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int index, char[] str, int offset,
|
||||
int len)
|
||||
{
|
||||
super.insert(index, str, offset, len);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, Object obj) {
|
||||
return insert(offset, String.valueOf(obj));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, String str) {
|
||||
super.insert(offset, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, char[] str) {
|
||||
super.insert(offset, str);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int dstOffset, CharSequence s) {
|
||||
if (s == null)
|
||||
s = "null";
|
||||
if (s instanceof String)
|
||||
return this.insert(dstOffset, (String)s);
|
||||
return this.insert(dstOffset, s, 0, s.length());
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int dstOffset, CharSequence s,
|
||||
int start, int end)
|
||||
{
|
||||
super.insert(dstOffset, s, start, end);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, boolean b) {
|
||||
super.insert(offset, b);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws IndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, char c) {
|
||||
super.insert(offset, c);
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, int i) {
|
||||
return insert(offset, String.valueOf(i));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, long l) {
|
||||
return insert(offset, String.valueOf(l));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, float f) {
|
||||
return insert(offset, String.valueOf(f));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws StringIndexOutOfBoundsException {@inheritDoc}
|
||||
*/
|
||||
public StringBuilder insert(int offset, double d) {
|
||||
return insert(offset, String.valueOf(d));
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
*/
|
||||
public int indexOf(String str) {
|
||||
return indexOf(str, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
*/
|
||||
public int indexOf(String str, int fromIndex) {
|
||||
return String.indexOf(value, 0, count,
|
||||
str.toCharArray(), 0, str.length(), fromIndex);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
*/
|
||||
public int lastIndexOf(String str) {
|
||||
return lastIndexOf(str, count);
|
||||
}
|
||||
|
||||
/**
|
||||
* @throws NullPointerException {@inheritDoc}
|
||||
*/
|
||||
public int lastIndexOf(String str, int fromIndex) {
|
||||
return String.lastIndexOf(value, 0, count,
|
||||
str.toCharArray(), 0, str.length(), fromIndex);
|
||||
}
|
||||
|
||||
public StringBuilder reverse() {
|
||||
super.reverse();
|
||||
return this;
|
||||
}
|
||||
|
||||
public String toString() {
|
||||
// Create a copy, don't share the array
|
||||
return new String(value, 0, count);
|
||||
}
|
||||
|
||||
/**
|
||||
* Save the state of the <tt>StringBuilder</tt> instance to a stream
|
||||
* (that is, serialize it).
|
||||
*
|
||||
* @serialData the number of characters currently stored in the string
|
||||
* builder (<tt>int</tt>), followed by the characters in the
|
||||
* string builder (<tt>char[]</tt>). The length of the
|
||||
* <tt>char</tt> array may be greater than the number of
|
||||
* characters currently stored in the string builder, in which
|
||||
* case extra characters are ignored.
|
||||
*/
|
||||
private void writeObject(java.io.ObjectOutputStream s)
|
||||
throws java.io.IOException {
|
||||
s.defaultWriteObject();
|
||||
s.writeInt(count);
|
||||
s.writeObject(value);
|
||||
}
|
||||
|
||||
/**
|
||||
* readObject is called to restore the state of the StringBuffer from
|
||||
* a stream.
|
||||
*/
|
||||
private void readObject(java.io.ObjectInputStream s)
|
||||
throws java.io.IOException, ClassNotFoundException {
|
||||
s.defaultReadObject();
|
||||
count = s.readInt();
|
||||
value = (char[]) s.readObject();
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user