Java: Exit button. [Much explanation required]

Question

How do I make a button, that would exit java application? This has to be a button in-game. I should be able to manage his location. You see - I am brand new to java, and only explored it by watching tutorial series on how to make a RPG style game. So all that stuff with "How to change the buttons location, style, size etc." would be highly appreciated.

Answer 1

Create your button & attach a listener to it that would call

System.exit(0);

on click. It shall shut down the JVM & your app.

EDIT:

JButton yourButton = new JButton("Exit");

yourButton.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        JButton clickedBtn = (JButton) e.getSource();

        if(clickedBtn == yourButton)
            System.exit(0);
        }
    }
});

// Or using Java8

yourButton.addActionListener(e -> {
    if(yourButton == (JButton) e.getSource())
        System.exit(0);
    }
});