package com.your.dream.real;

/**
 * Calcualtor
 *
 */
public class App 
{
	
	private App() 
	{
		// do not create App class directly test
	}
	
    	}
    }
}

@@ -131,16 +131,17 @@
 tly test
+2
 %0A%09%7D%0A%09%0A  

Update Calculater.java