Destroy object

[anjanesh]

Hi

How do I reuse the same object-name ?

PHP Code:

String s = new String("a-string");
System.out.println(s);
s = null;

Integer s = new Integer(5);
System.out.println(s); 


Code:

Main.java:19: s is already defined in main(java.lang.String[])
                String s = new String("b-string");

I thought setting it to null would destroy it.

Thanks

[rajiv_bang]

Anjanesh,

The code is trying to reuse the variable 's' and not an object (a reference actually). It is trying to declare a variable 's' again as an Integer when it has already been declared a few lines above as a String reference variable.

Variable names in the same scope should be unique. You cannot have two variables with the same name in the same scope.

However, if you want to use the same reference variable to point to a different object, you can do so.

HTH

Code:

	String s = new String("a-string");
	System.out.println(s);
	s = null;

	s = new String("b-string");
	System.out.println(s);

[anjanesh]

Is there any way to destroy a variable so that it can be used to assign it to another type ?

[CaptainMorgan]

Quote:

Originally Posted by anjanesh

Is there any way to destroy a variable so that it can be used to assign it to another type ?

Rajiv will correct me if I'm wrong, but I'm pretty sure he answered this question.

Quote:

Variable names in the same scope should be unique. You cannot have two variables with the same name in the same scope.

However, if you want to use the same reference variable to point to a different object, you can do so.