Random simple java programs that actually do something useful.

[Yeong]

Well, this is the java code that lets u convert decimal to binary ~ 36-base number.

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import java.util.*; public class Convert {     public static String convertbase(int n, int base) {        // special case        if (n == 0) return "0";        String digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String s = "";        while (n > 0) {           int d = n % base;           s = digits.charAt(d) + s;           n = n / base;        }        return s;     }     public static void main(String[] args)     {         Scanner keyboard = new Scanner(System.in);         System.out.print("Enter the number base 10 to convert:  ");         int original = keyboard.nextInt();         System.out.print("Enter the new base: ");         int base = keyboard.nextInt();         String answer = convertbase(original,base);         System.out.println("The number "+original+"[base 10] = "+answer+"[base "+base+"]");     } }

[Munchor]

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import java.util.*; public class Convert {     public static String convertbase(int n, int base) {        // special case        if (n == 0) return "0";        String digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String s = "";        while (n > 0) {           int d = n % base;           s = digits.charAt(d) + s;           n = n / base;        }        return s;     }     public static void main(String[] args)     {         Scanner keyboard = new Scanner(System.in);         System.out.print("Enter the number base 10 to convert:  ");         int original = keyboard.nextInt();         System.out.print("Enter the new base: ");         int base = keyboard.nextInt();         String answer = convertbase(original,base);         System.out.println("The number "+original+"[base 10] = "+answer+"[base "+base+"]");     } }

This is looking good. It seems like it supports all bases.

Here's how it works for me:

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david@DavidPC:~/Documentos/Java$ javac Convert.java david@DavidPC:~/Documentos/Java$ java Convert Enter the number base 10 to convert:  65535 Enter the new base: 16 The number 65535[base 10] = FFFF[base 16] david@DavidPC:~/Documentos/Java$ java Convert Enter the number base 10 to convert:  255 Enter the new base: 2 The number 255[base 10] = 11111111[base 2]

[Yeong]

Well, that's what supposed to look like. 
BTW, don't try incredibly huge number or it will go overflow

[nemo]

then to go from any base to another...

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import java.util.Scanner; public class Test{ public static void main(String[] args){ Scanner intRead = new Scanner(System.in); Scanner strRead = new Scanner(System.in); System.out.print("Enter a number to convert: "); String src = strRead.nextLine(); System.out.print("Enter the number's base: "); int oldBase = intRead.nextInt(); System.out.print("Enter the desired base: "); int newBase = intRead.nextInt(); String ans = Integer.toString(Integer.valueOf(src, oldBase), newBase); System.out.println(src + " in base " + oldBase + " is " + ans + " in base " + newBase); } }