<qiyuangong>1323_Maximum_69_Number_1.java
public int maximum69Number (int num) {
        return Integer.valueOf(String.valueOf(num).replaceFirst("6", "9"));
    }
public int sample_funcname ( int var_0 ) {
  return Integer . valueOf ( String . valueOf ( var_0 ) . replaceFirst ( "6" , "9" ) ) ;
}
