Java Singleton Pattern

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    import java.io.; import java.util.;

    public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner sc = new Scanner(System.in);
        String str=sc.nextLine();
        Singleton s = Singleton.getSingleInstance(str);
        System.out.println("Hello I am a singleton! Let me say " +s.str+ " to you"); 
    }
    

    }

    class Singleton{ public String str; private static Singleton s; private Singleton(String str){this.str=str;} public static Singleton getSingleInstance(String str){ if(s==null){ s= new Singleton(str); } return s; }

    }

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