Right Clicking on JButton

Question

trying to add a mouseAdapter to a JButton for a right click to flag the cell. Problem is when I instantiate it onto the button, it won\'t let me. Maybe because it already

Answer 1

MouseAdapter is an abstract class and you cannot create instances of it. That is why you get the error.

button[r][c].addMouseListener (new MouseAdapter());  //  this will not work

button[r][c].addMouseListener (new MouseAdapter(){});  // this will
                                                 ^

button[r][c].addMouseListener (new MouseAdapter(){
    public void mouseClicked(MouseEvent e){
         // and this will actually do sth. ; )
    }
});