comefrom: <awangdev>68. Text Justification_2.java
code: private String generateSpace(int n) {
  
          if (n <= 0) return "";
          StringBuffer sb = new StringBuffer();
          for (int i = 0; i < n; i++) sb.append(" ");
          return sb.toString();
      }
masked: private String var_0 ( int var_1 ) {
    if ( var_1 <= 0 ) return "" ;
    StringBuffer var_5 = new StringBuffer ( ) ;
    for ( int var_6 = 0 ;
    var_6 < var_1 ;
    var_6 ++ ) var_5 . append ( " " ) ;
    return var_5 . toString ( ) ;
  }
  