Object ID

[javaplus]

I believe that every object I create, has its unique ID in JVM. I want to get that ... lets say print on the console.

Can anyone help me with this...
Ill be thankful

[javagk]

Each object has a unique hash value which you can treat as unique ID for that object.

Code:

String abc = new String("Australia");
System.out.println("Hash code for String object: " + abc.hashCode());

Student obj = new Student();
System.out.println("Hash code for Student object: " + obj.hashCode());

Output:

Code:

Hash code for String object: -1357076128
Hash code for Student object: 26022015

[javaplus]

Thanks mate. Works fine.

[bugger]

It is an interesting info for me.

[Eranga]

It can be important in many cases. Important thing to remember is that hash codes are signed numbers(long). I miss that point in many cases when I'm learning it. Since that hashCode() can be overridden by subclasses you may associate with your own hash code with object.