第七堂課@@

beginning

go to teacher's blogger  http://tccnchsu.blogspot.com/

copy the code and modify it

first step,change the first letter

ex:JFrame、JButton

add import javax.swing.*;

because if we want to use JFrame or FButton

we have to add this package

Today,we have to create a frame like this↓

add 

for (int i = 0; i < numbers.length; i++)

{

buttons[i] = new JButton(numbers[i]); // create buttons

p1.add(buttons[i], border);

}

FlowLayout flow=new FlowLayout();

JPanel p2 = new JPanel(flow); //PREFERRED!

final,the result↓

// with event

//AWT, JButton類別 有ActionListener

//AWT, JButton類別

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class SwingTest extends JFrame implements ActionListener

{

//static JFrame myfrm=new JFrame("JButton class"); // Java Class JFrame

//static AwtTestEvent myfrm=new AwtTestEvent("JFrame 1 "); // Java Class JFrame

static JButton btn1=new JButton("JButton 1"); // 建立1按鈕物件

static JButton btn2=new JButton("JButton 2"); // 建立2按鈕物件

static JTextField tbx1=new JTextField("                 "); // 建立1文字方塊物件

public static void main(String args[])

{

JButton buttons[] = new JButton[9];

String numbers[] = {"1", "2", "3", "4", "5", "6", "7", "8", "9"};

SwingTest1 myfrm=new SwingTest1();

GridLayout border = new GridLayout(3,3);

GridLayout border2 = new GridLayout(1,2);

JPanel p1 = new JPanel(border); //PREFERRED!

myfrm.add(p1);

for (int i = 0; i < numbers.length; i++)

{

buttons[i] = new JButton(numbers[i]); // create buttons

p1.add(buttons[i], border);

}

FlowLayout flow=new FlowLayout();

JPanel p2 = new JPanel(flow); //PREFERRED!

myfrm.setLayout(border);

myfrm.setSize(250,150);

btn1.addActionListener(myfrm);

p2.add(tbx1, border2); 

p2.add(btn1);

myfrm.add(p2);

myfrm.setVisible(true); 

}

public void actionPerformed(ActionEvent e) 

{ 

String stringValue;

stringValue=tbx1.getText();

//String stringValue = Integer.toString();

System.out.println(stringValue);

}

}

if you meet some trouble,just google!!   一3一