package com.mycompany.test;

public class Calculator {

  public static void main(String[] args){
    int a=4;
    int b=2;
    System.out.println( sum(a,b));
  }

  private static int sum(int a, int b){
    return a+b;
  }
  private static int minus(int a, int b){
    return a-b;
  }
}

@@ -278,11 +278,191 @@
 a-b;%0A  %7D
+%0A%0A  public static int minus(int a, int b, Object GPU)%7B%0A    int result = 0;%0A    if(GPU == null)%7B%0A      result = a-b;%0A    %7D%0A    else%7B%0A      result = a-b;%0A    %7D%0A    return result;%0A  %7D
 %0A%7D%0A

Add minus() for GPU