like this for example:
public class Singleton {
private static final Singleton sing = new Singleton;
private Singleton(){}
public static Singleton getInstance(){
return sing;
}
}
package com.codegym.task.task14.task1421;
/*
Singleton
*/
public class Solution {
public static void main(String[] args) {
//System.out.println(Singleton.getInstance());
}
}