第六週 - 作業

來源：程式設計工藝大師
程式代碼：
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");
JButton  jbnButton10 = new JButton("Button 10");

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!");
}
});
jbnButton10.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
System.out.println("Button 10!");
}
});



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);
jplPanel.add(jbnButton10);
jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);
jtfMainFrame.setVisible(true);
System.out.println("chih-yu hsu");
}
}

以迴圈形式建立Button
程式代碼：
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Test extends JFrame{
public static void main(String[]args){
JFrame window=new JFrame("Calculator");
JPanel jplPanel = new JPanel();
JButton button[]=new JButton[10];
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);
}}