Anonymous class and the semi colon

[david allen]

After every declaration of an anonymous class are we required to add a semi colon?

Or is it only in some cases?

Thank you
david

[Joe Sondow]

No, there are cases where no semicolon is used after the declaration of an anonymous class. An example is when an instance of an anonymous class is passed as an argument into a method.

[Anuradha Prasanna]

Hi david,

Suppose you are creating an anonymous class which implements the interface, ActionListener like below,

public void aMethod(){

//....

new ActionListener(){

//Anonymous class code
}
}
In the above case you dont need any semicolon after the anonymous class.

If you modify the same code as below,

public void aMethod(){

//....

ActionListener a1 = new ActionListener(){

//Anonymous class code
};
}
In the above modified code, if you are assigned the instance of your anonymous class to the reference variable say, a1 in this case then you have to use semicolon after the anonymous class.