Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class Main extends JFrame {
    JTextArea txtMain;

    Main() {
        setSize(500, 300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());
        JScrollPane pane = new JScrollPane();
        txtMain = new JTextArea();
        pane.setViewportView(txtMain);
        this.add(pane, BorderLayout.CENTER);

        JButton btnAddText = new JButton("Add Text");
        btnAddText.addActionListener(e -> {
            txtMain.setText(txtMain.getText()
                    + "\nLorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi sagittis id nibh vel rhoncus. ");
            String text = txtMain.getText();
            txtMain.setCaretPosition(text != null ? text.length() : 0);
        });
        add(btnAddText, BorderLayout.SOUTH);
        setVisible(true);
    }

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