package com.iluwatar;

/**
 * 
 * Singleton class.
 *
 */
public class IvoryTower {

	private static IvoryTower instance = new IvoryTower();
	
	private IvoryTower() {
	}

	public static IvoryTower getInstance() {
		return instance;
	}
}

@@ -126,27 +126,8 @@
 ance
- = new IvoryTower()
 ;%0D%0A%09
@@ -151,19 +151,16 @@
 ower() %7B
-%0D%0A%09
 %7D%0D%0A%0D%0A%09pu
@@ -199,16 +199,77 @@
 ce() %7B%0D%0A
+%09%09if(instance ==  null)%7B%0D%0A%09%09%09instance = IvoryTower();%09%0D%0A%09%09%7D%0D%0A
 %09%09return

Update IvoryTower.java