package com.mycompany.test;

public class Calculator {

	public static void main(String[] args) {
        systme.out.prinln("hihii")
	}

}

@@ -103,14 +103,40 @@
     
-s
+int a = 4;%0A%09%09int b = 2;%0A%09%09S
 yst
-m
 e
+m
 .out
@@ -144,22 +144,95 @@
 prin
+t
 ln(
-%22hihii%22)%0A%09%7D%0A
+sum(a,b));%0A%09%7D%0A%0A    private static int sum(int a, int b)%7B%0A        return a + b;%0A    %7D
 %0A%7D%0A

Add Sum function