<awangdev>Binary Representation_1.java
public String parseInteger(String n) {
        if (n.length() == 0 || n.equals("0")) {
            return n;
        }
        int num = Integer.parseInt(n);
        StringBuffer sb = new StringBuffer();
        while (num != 0) {
            sb.insert(0, num % 2);
            num = num / 2;
        }
        return sb.toString();
    }
public String var_0 ( String var_2 ) {
  if ( var_2 . length ( ) == 0 || var_2 . equals ( "0" ) ) {
    return var_2 ;
  }
  int var_9 = Integer . parseInt ( var_2 ) ;
  StringBuffer var_11 = new StringBuffer ( ) ;
  while ( var_9 != 0 ) {
    var_11 . insert ( 0 , var_9 % 2 ) ;
    var_9 = var_9 / 2 ;
  }
  return var_11 . toString ( ) ;
}
