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class Singleton{
public static Singleton instance;
public String str;
private Singleton(){
str = "Hello I am a singleton! Let me say hello world to you";
}
public static Singleton getSingleInstance(){
if(instance==null){
instance=new Singleton();
}
return instance;
}
}
class Test{
public static void main(String args){
Singleton singleton=Singleton.getSingleInstance();
System.out.println(singleton.str);
}
}
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Java Singleton Pattern
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class Singleton{ public static Singleton instance; public String str; private Singleton(){ str = "Hello I am a singleton! Let me say hello world to you"; } public static Singleton getSingleInstance(){ if(instance==null){ instance=new Singleton(); } return instance; } } class Test{ public static void main(String args){ Singleton singleton=Singleton.getSingleInstance(); System.out.println(singleton.str); } }