Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;

public class Main {
    JTextField jtf = new JTextField(15);
    JButton jbtnCut = new JButton("Cut");
    JButton jbtnPaste = new JButton("Paste");
    JButton jbtnCopy = new JButton("Copy");

    public Main() {
        JFrame jfrm = new JFrame("Cut, Copy, and Paste");
        jfrm.setLayout(new FlowLayout());
        jfrm.setSize(230, 150);
        jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        jbtnCut.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent le) {
                jtf.cut();
                update();
            }
        });

        jbtnPaste.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent le) {
                jtf.paste();
                update();
            }
        });

        jbtnCopy.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent le) {
                jtf.copy();
                update();
            }
        });

        jtf.addCaretListener(new CaretListener() {
            public void caretUpdate(CaretEvent ce) {
                update();
            }
        });

        jfrm.add(jtf);
        jfrm.add(jbtnCut);
        jfrm.add(jbtnPaste);
        jfrm.add(jbtnCopy);
        jfrm.setVisible(true);
    }

    private void update() {
        System.out.println("All text: " + jtf.getText());

        if (jtf.getSelectedText() != null)
            System.out.println("Selected text: " + jtf.getSelectedText());
        else
            System.out.println("Selected text: ");
    }

    public static void main(String args[]) {
        new Main();
    }
}