Thread Safe Singleton

This program demonstrates thread safe Singleton.

Problem Statement

Write a Java program to implement thread safe Singleton using synchronized method.

Source Code

1	class Singleton {
2	private static Singleton instance;
3	private Singleton(){ }
4	public static synchronized Singleton getInstance(){
5	if(instance==null) instance=new Singleton();
6	return instance;
7	}
8	}
9	public class SingletonThreadSafe {
10	public static void main(String[] args) {
11	System.out.println("Eduinq Singleton Thread Safe");
12	Singleton s1=Singleton.getInstance();
13	Singleton s2=Singleton.getInstance();
14	System.out.println(s1==s2);
15	}
16	}

Program Output

Eduinq Singleton Thread Safe
true

Explanation

Synchronization ensures thread safety. - Only one thread can access method at a time. - Prevents multiple instances in multithreaded environment. - This guarantees Singleton integrity across threads. Conclusion: Shows how to implement thread safe Singleton.

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