Java Singleton Pattern Hackerrank Solution

 Java Singleton Pattern  Hackerrank Solution

For Explanation Watch Video:

Sample Input

hello world

Sample Output

Hello I am a singleton! Let me say hello world to you

Code:

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
import java.lang.reflect.*;


class Singleton{
    public String str;
    private Singleton(){
        
    }
    public static Singleton getSingleInstance(){
        return new Singleton();
    }
}