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saviomisael / Singleton.java

Last active August 30, 2024 19:22

Singleton Thread-Safe Java

	import java.util.concurrent.locks.ReentrantLock;

	public class Singleton {
	private ReentrantLock lock = new ReentrantLock();
	private Singleton instance = null;

	public Singleton getInstance() {
	// this creates an auxiliary variable to prevent another thread wait the synchronized block gets unlock
	Singleton result = instance;