Re: Is it possible to get the address of an object in Java language?

Lew <>
Fri, 19 Jan 2007 08:21:27 -0500
Abhi wrote:

Hi Xie,
If u just want the address of the object u r creating then I think
System.out.print(obj) should hlp u.It prints the obj type@obj
address.e.g see the test code
public class GetObjAdd {

    public static void main(String[] args) {
        System.out.print(new GetObjAdd());

That is not the address but the hash code. Have you read the Javadocs for Object?

"The toString method for class Object returns a string consisting of the name
of the class of which the object is an instance, the at-sign character `@',
and the unsigned hexadecimal representation of the hash code of the object. In
other words, this method returns a string equal to the value of:

      getClass().getName() + '@' + Integer.toHexString(hashCode())"

There is no meaningful concept of the address of a variable in the Java language.

BTW, "u", "r" and "hlp" are not the correct spelling for those English words.

- Lew

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