week5 @ Java程式設計

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Test
{

jplPanel.add(jbnButton1);

jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);
jtfMainFrame.setVisible(true);
System.out.print("chih-yu hsu");
}
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Test
{

JPanel jplPanel = new JPanel();
jplPanel.add(jbnButton1);
jplPanel.add(jbnButton2);
jplPanel.add(jbnButton3);
jplPanel.add(jbnButton4);
jplPanel.add(jbnButton5);
jplPanel.add(jbnButton6);
jplPanel.add(jbnButton7);
jplPanel.add(jbnButton8);
jplPanel.add(jbnButton9);
jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);
jtfMainFrame.setVisible(true);
System.out.print("chih-yu hsu");
}
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Test
{

public static void main(String[] args)
{
JFrame jtfMainFrame = new JFrame("Which Button Demo");
jtfMainFrame.setSize(450, 150);
JButton jbnButton1 = new JButton("Button 1");
JButton jbnButton2 = new JButton("Button 2");
JButton jbnButton3 = new JButton("Button 3");
JButton jbnButton4 = new JButton("Button 4");
JButton jbnButton5 = new JButton("Button 5");
JButton jbnButton6 = new JButton("Button 6");
JButton jbnButton7 = new JButton("Button 7");
JButton jbnButton8 = new JButton("Button 8");
JButton jbnButton9 = new JButton("Button 9");
jbnButton1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 1!");}});
jbnButton2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 2!");}});
jbnButton3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 3!");}});
jbnButton4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 4!");}});
jbnButton5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 5!");}});
jbnButton6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 6!");}});
jbnButton7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 7!");}});
jbnButton8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 8!");}});
jbnButton9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Button 9!");}});

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calculator extends JFrame{
public static void main(String[]args){
JFrame window=new JFrame("Calculator");
JButton button[]=new JButton[10];
JPanel jplPanel = new JPanel();
for(int i=0;i<button.length;i++){
button[i] = new JButton();
button[i].setSize(50,50);
button[i].setText(Integer.toString(i+1));
jplPanel.add(button[i]);
}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);
}}