Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.swing.JButton;

public class Main {

    public static void main(String[] args) throws Exception {

    }

    public void capturingVariable() {
        String name = getUserName();
        JButton button = new JButton();
        button.addActionListener(event -> System.out.println("hi " + name));
    }

    public void capturingVariableError() {
        // fails to compile
        String name = getUserName();
        name = "asdf";
        JButton button = new JButton();
        // button.addActionListener(event -> System.out.println("hi " + name));
    }

    private String getUserName() {
        return "Test";
    }

}