Question

So I have A MouseListener class inside a public class with a few methods.
I have attached the mouseListener to a component in the public class.

The problem is I can’t figure out a simple way to call the methods in the public class, whenever I say for example this.showRemove(); the scope is from within the handler class and not the public class. Here is some example code

public class Game {

 public Game() {

  JPanel pnl = new JPanel();
  pnl.addMouseListener(new GameMouseListener());

 }

 public void showRemove(){

  //Code Here

 }


 class GameMouseListener implements MouseListener {

  public void mouseClicked(MouseEvent e) {
     this.showRemove(); //Can't Find Symbol Here     

  }

 }  

}

Answer 1

When you use this in an inner class, you are referring to the instance of the inner class, not the host class.

Since your inner class is not a static inner class, you can access the reference to the host class by using it’s class name like so:

HostClass {
    doSomething() {}

    class Inner {
        void blah() {
            HostClass.this.doSomething();
        }
    }
}

Unless the method you’re calling is also in the inner class, you can avoid the explicit naming and can simply use the method name:

void blah() {
    doSomething();
}