diff --git a/Conversions/DecimalToAnyBase.java b/Conversions/DecimalToAnyBase.java new file mode 100644 index 000000000..d3927ff8d --- /dev/null +++ b/Conversions/DecimalToAnyBase.java @@ -0,0 +1,65 @@ +import java.io.BufferedReader; +import java.io.InputStreamReader; +import java.util.ArrayList; + +/** + * + * @author Varun Upadhyay (https://github.com/varunu28) + * + */ + +// Driver Program +public class DecimalToAnyBase { + public static void main (String[] args) throws Exception{ + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + System.out.println("Enter the decimal input below: "); + int decInput = Integer.parseInt(br.readLine()); + System.out.println(); + + System.out.println("Enter the base below: "); + int base = Integer.parseInt(br.readLine()); + System.out.println(); + + System.out.println("Decimal Input" + " is: " + decInput); + System.out.println("Value of " + decInput + " in base " + base + " is: " + convertToAnyBase(decInput, base)); + + br.close(); + } + + /** + * This method produces a String value of any given input decimal in any base + * @param inp Decimal of which we need the value in base in String format + * @return string format of the converted value in the given base + */ + + public static String convertToAnyBase(int inp, int base) { + ArrayList charArr = new ArrayList<>(); + + while (inp > 0) { + charArr.add(reVal(inp%base)); + inp /= base; + } + + StringBuilder str = new StringBuilder(charArr.size()); + + for(Character ch: charArr) + { + str.append(ch); + } + + return str.reverse().toString(); + } + + /** + * This method produces character value of the input integer and returns it + * @param num integer of which we need the character value of + * @return character value of input integer + */ + + public static char reVal(int num) { + if (num >= 0 && num <= 9) + return (char)(num + '0'); + else + return (char)(num - 10 + 'A'); + } +}