In this Example, you can find the Cloneable interface and Clone method usage in java. and also various ways to create object in java.
/*
* Object cloning is a way to create exact copy of an object.
* To use clone() method of java.lang.Cloneable interface, class must implement it else CloneNotSupportException will be thrown.
*/
class TestClone implements Cloneable {
int a;
int b;
TestClone(int a,int b){
this.a = a;
this.b = b;
}
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
}
public class CloningTest {
public static void main(String a[]) throws CloneNotSupportedException {
TestClone tc = new TestClone(4,5);
TestClone tcCloned = (TestClone) tc.clone();
System.out.println("a from tc " + tc.a);
System.out.println("a from tcCloned " + tcCloned.a);
}
}
/*
* In Java object can be created in following ways...
* 1. New Keyword
* 2. newInstance() method
* 3. clone() method
* 4. Factory Method.
*/