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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Foo x = new Foo(123, 456);
  13. 		System.out.println(x);
  14. 		Object clone = x.clone();
  15. 		System.out.println(clone);
  16. 	}
  17. }
  18.  
  19. class Foo implements Cloneable {
  20.  
  21.     private Integer notInClone;
  22.     private Integer doClone = 123;
  23.  
  24.     public Foo(int a, int b) {
  25.     	notInClone = a;
  26.     	doClone = b;
  27.     }
  28.  
  29.     public Object clone() throws CloneNotSupportedException {
  30.     	Foo res = (Foo)super.clone();
  31.     	res.notInClone = null;
  32.     	return res;
  33.     }
  34.  
  35.     public String toString() {
  36.     	return notInClone + ":" + doClone;
  37.     }
  38.  
  39. }
Success #stdin #stdout 0.09s 27756KB
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stdin
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Standard input is empty
stdout
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123:456
null:456
https://ideone.com/HMyR6J
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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