In this commit I have:

Added JavaDoc to every package except for "heaps"

DecimalToOctal.java

@@ -0,0 +1,31 @@
+import java.util.Scanner;
+
+/**
+ * This class converts Decimal numbers to Octal Numbers
+ * 
+ * @author Unknown
+ *
+ */
+class Decimal_Octal
+{
+	/**
+	 * Main Method
+	 * 
+	 * @param args Command line Arguments
+	 */
+  public static void main(String[] args)
+  {
+    Scanner sc=new Scanner(System.in);
+    int n,k,d,s=0,c=0;
+    n=sc.nextInt();
+    k=n;
+    while(k!=0)
+    {
+      d=k%8;
+      s+=d*(int)Math.pow(10,c++);
+      k/=8;
+    }
+    System.out.println("Decimal number:"+n);
+    System.out.println("Octal equivalent:"+s);
+  }
+}