How Singleton pattern with Early Initialization vs Lazy Loading in Apex differs? - Salesforce Stack Exchange

public with sharing class EagerInitializedSingleton {

//private static instance of the class
private static final EagerInitializedSingleton instance = new EagerInitializedSingleton();

//private constructor to avoid creating an instance anywhere outside of this class
private EagerInitializedSingleton(){}

public static EagerInitializedSingleton getInstance(){
    return instance;
}