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SINGLETON
package com.exam.desingpattern;
public class Singleton implements Cloneable {
static Singleton singleton;
public static Singleton getInstance()
{
if (singleton == null)
{
return new Singleton();
}
else
{
return singleton;
}
}
@Override
protected Object clone() throws CloneNotSupportedException {
// TODO Auto-generated method stub
/*
* Here forcibly throws the exception for preventing to be cloned
*/
throw new CloneNotSupportedException();
// return super.clone();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Singleton test1 = Singleton.getInstance();
try {
Singleton test2 = (Singleton) test1.clone();
} catch (CloneNotSupportedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}