On what specific part of the program were the awt and javax.swing packages used? Explain how. On what specific part of the program was the awt.event package used? Explain how.
On what specific part of the program were the awt and javax.swing packages used? Explain how. On what specific part of the program was the awt.event package used? Explain how.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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- On what specific part of the
program were the awt and javax.swing packages used? Explain how. - On what specific part of the program was the awt.event package used? Explain how.
Transcribed Image Text:import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class NewFrame extends JFrame implements ActionListener {
JButton Evaluate;
JTextField txt_enter;
JLabel lbl_enter;
NewFrame() {
setlayout (null);
setsize( width: 300, height: 100);
Evaluate = new JButton( text: "Evaluate");
txt_enter = new JTextField();
lbl_enter = new JLabel( text: "Enter:");
add(Evaluate);
add(txt_enter);
add(lbl_enter);
lbl_enter.setBounds ( x: 30, y: 20, width: 50, height: 30);
txt_enter.setBounds ( x: 80, y: 20, width: 50, height: 30);
Evaluate.setBounds( x: 140, y: 20, width: 100, height: 30);
setVisible(true);
setResizable(false);
Evaluate.addActionListener ( I: this);
this.getContentPane().setBackground(Color.gray);
}
public void actionPerformed(ActionEvent e) {
if(e.getSource () ==Evaluate){
int n;
Integer.parseInt(txt_enter.getText());
if ( n % 2 == 0 )
J0ptionPane.showMessageDialog( parentComponent: nulı, message: "Integer is EVEN");
n
%3D
else
J0ptionPane.showMessageDialog( parentComponent: null, message: "Integer is ODD");
}
![import javax. swing.*;|
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class GUI1 implements ActionListener {
public GUI1(){
JFrame frame = new JFrame();
JLabel label = new JLabel( text: "Program uses Java GUI message and input dialogs.");
JLabel label2 = new JLabel( text: "Program evaluates integers as even or odd.");
ImageIcon icon = new ImageIcon( filename: "icon.png");
JButton button = new JButton( text: "OK");
button.addActionListener( l: this);
JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createEmptyBorder( top: 0, left: 30, bottom: 10, right: 30));
panel.setlayout(new GridLayout( rows: 0, cols: 1));
JLabel image = new JLabel(icon);
panel.add(image);
panel.add (label);
panel.add (label2);
panel.add (button);
frame.add(panel);
frame.setDefaultcloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setIconImage(icon.getImage());
frame.setTitle("Message");
frame.pack();
frame.setVisible(true);
}
@0verride
public void actionPerformed (ActionEvent e) {
new NewFrame();
public static void main(String[] args) {
new GUI1();](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffd03a5c5-bd97-4de5-b523-2f0322ccae08%2Ffcf77315-8ef2-4193-9e08-acaa1eca6c30%2F4h360me_processed.png&w=3840&q=75)
Transcribed Image Text:import javax. swing.*;|
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class GUI1 implements ActionListener {
public GUI1(){
JFrame frame = new JFrame();
JLabel label = new JLabel( text: "Program uses Java GUI message and input dialogs.");
JLabel label2 = new JLabel( text: "Program evaluates integers as even or odd.");
ImageIcon icon = new ImageIcon( filename: "icon.png");
JButton button = new JButton( text: "OK");
button.addActionListener( l: this);
JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createEmptyBorder( top: 0, left: 30, bottom: 10, right: 30));
panel.setlayout(new GridLayout( rows: 0, cols: 1));
JLabel image = new JLabel(icon);
panel.add(image);
panel.add (label);
panel.add (label2);
panel.add (button);
frame.add(panel);
frame.setDefaultcloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setIconImage(icon.getImage());
frame.setTitle("Message");
frame.pack();
frame.setVisible(true);
}
@0verride
public void actionPerformed (ActionEvent e) {
new NewFrame();
public static void main(String[] args) {
new GUI1();
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