Java program to remove duplicates characters from given String.

class RemoveDuplicate {
 public static void main(String args[]) {
  remove("123aa bbbcc  c2589  99oppq rtyyy");
 }
 static void remove(String s) {
  int l = s.length();
  int c;
  String org = s, s1 = "";
  for (int i = 0; i < (l - 1); i++) {
   s1 = s.substring(0, i + 1);
   c = 0;
   for (int j = i + 1; j < l; j++) {
    if (s.charAt(i) == s.charAt(j)) {
     c++;
     continue;
    } else
     s1 = s1 + s.charAt(j);
   }
   s = s1;
   s1 = "";
   if (c > 0)
    l -= c;
  }
  System.out.println("Original String:" + org);
  System.out.println("String after removing duplicates:  " + s);
 }
}


Output:

Original String:123aa bbbcc  c2589  99oppq rtyyy

String after removing duplicates:  123a bc589opqrty