└── java singleton pattern


/java singleton pattern:
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 1 | import java.io.*;
 2 | import java.util.*;
 3 | import java.text.*;
 4 | import java.math.*;
 5 | import java.util.regex.*;
 6 | import java.lang.reflect.*;
 7 | 
 8 | 
 9 | final class Singleton{
10 |     public String str = "Hello I am a singleton! Let me say hello world to you"; 
11 |     
12 |     private static Singleton singleton;
13 |     
14 |     private Singleton(){
15 |         
16 |     }
17 |     
18 |     public static Singleton getSingleInstance(){
19 |         if(singleton == null)
20 |             singleton = new Singleton();
21 | 
22 |         return singleton;
23 |     }
24 | }
25 | 


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