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));
		System.out.println(minus(a,b));
	}

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

@@ -307,12 +307,199 @@
 + b;%0A%09%7D%0A
-%09
+%0A%09private static int mul(int a, int b, Object GPU) %7B%0A%09%09int result = 0;%0A%09%09if( GPU == null )%7B%0A%09%09%09result = a * b;%0A%09%09%09return result;%0A%09%09%7D%0A%09%09else%7B%0A%09%09%09result = a * b;%0A%09%09%09return result;%0A%09%09%7D%0A%0A%09%7D%0A%0A%0A
 %0A%7D%0A

Add GPU mul function