A Hello World Program in Singleton Design Pattern in Java

Below is a very easy program which can be used by programmers if they want to learn about Singleton pattern in Java.

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package com.javagenious.singleton;
 
public class JavaGeniousSimpleSingletonExample {
 private static SimpleSingleton simpleSingleton;
 
 private SimpleSingleton() {
 };
 
 public static SimpleSingleton getInstance() {
  if (simpleSingleton == null)
   simpleSingleton = new SimpleSingleton();
  return simpleSingleton;
 }
}

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