comefrom: <gouthampradhan>array_MaximumSwap_1.java
code: public int maximumSwap(int num) {
      int[] D = new int[10];
      char[] A = String.valueOf(num).toCharArray();
      for (int i = 0; i < A.length; i++) {
        D[A[i] - '0'] = i;
      }
      boolean found = false;
      for (int i = 0; i < A.length; i++) {
        int digit = A[i] - '0';
        for (int j = 9; j > digit; j--) {
          if (D[j] > i) {
            char temp = A[i];
            A[i] = (char) (j + '0');
            A[D[j]] = temp;
            found = true;
            break;
          }
        }
        if (found) break;
      }
      return Integer.parseInt(String.valueOf(A));
    }
masked: public int sample_funcname ( int var_0 ) {
    int [ ] var_2 = new int [ 10 ] ;
    char [ ] var_6 = String . valueOf ( var_0 ) . toCharArray ( ) ;
    for ( int var_8 = 0 ;
    var_8 < var_6 . length ;
    var_8 ++ ) {
      var_2 [ var_6 [ var_8 ] - '0' ] = var_8 ;
    }
    boolean var_16 = false ;
    for ( int var_8 = 0 ;
    var_8 < var_6 . length ;
    var_8 ++ ) {
      int var_12 = var_6 [ var_8 ] - '0' ;
      for ( int var_14 = 9 ;
      var_14 > var_12 ;
      var_14 -- ) {
        if ( var_2 [ var_14 ] > var_8 ) {
          char var_15 = var_6 [ var_8 ] ;
          var_6 [ var_8 ] = ( char ) ( var_14 + '0' ) ;
          var_6 [ var_2 [ var_14 ] ] = var_15 ;
          var_16 = true ;
          break ;
        }
      }
      if ( var_16 ) break ;
    }
    return Integer . parseInt ( String . valueOf ( var_6 ) ) ;
  }
  