loading
}
}
else if(mouseFlag= =2)
{ g.clearRect(0,0,getWidth(),getHeight()); }
public void init() { } }
8. import java.applet.*; import java.awt.*; import java.awt.event.*;
public class MouseDrawRect extends Applet implements MouseMotionListener {
int xstart=-1,ystart=-1; int xend,yend;
TextField showPosition; public void init()
服装制版视频淘宝才智在线
addMouseListener(new MouseAdapter() { });
public void mouseClicked(MouseEvent e) { if(e.getClickCount() ==1) mouseFlag = 1;
else if (e.getClickCount() ==2) mouseFlag = 2; xPos = e.getX() yPos = e.getY(); repaint(); }
{ showPosition = new TextField(20); add(showPosition);
addMouseMotionListener(this); addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent event)
{ xstart = event.getX(); ystart = event.getY(); } } ); }
public void paint(Graphics g) { if(xstart!=-1 && ystart!=-1)
{ g.drawRect(xstart,ystart,xend-xstart,yend-ystart); showPosition.setText(\ } }
public void mouseDragged(MouseEvent e) { xend = e.getX(); yend = e.getY(); repaint(); }
public void mouseMoved(MouseEvent e){} } 9.
import javax.swing.*; import java.awt.*;
class SpeakPhone extends JFrame
服装制版视频淘宝才智在线
{
JPanel p1 = new JPanel();
p1.setLayout(new GridLayout(2,1)); Label lab =new Label(\ lab.setFont(f1); p1.add(lab); p1.add(speak);
JPanel p2 = new JPanel();
p2.setLayout(new GridLayout(3,4)); for(int i=0;i<12;i++) { }
JPanel p3 = new JPanel();
p3.setLayout(new GridLayout(1,2));
numbers[i]=new JButton(numberString[i]); numbers[i].setFont(f1); p2.add(numbers[i]);
JTextArea speak;
JButton numbers[] = new JButton[12];
String numberString[] = {\JButton enter,cancel;
Font f1 = new Font(\
SpeakPhone(){
setSize(200,400);
Container con = getContentPane(); speak = new JTextArea(4,6);
服装制版视频淘宝才智在线
}
enter = new JButton(\确定\cancel = new JButton(\取消\
}
p3.add(enter); p3.add(cancel);
con.add(p1,BorderLayout.NORTH); con.add(p2,BorderLayout.CENTER); con.add(p3,BorderLayout.SOUTH);
setVisible(true);
public static void main(String args[]) { }
SpeakPhone mainFrm = new SpeakPhone();
10. import java.awt.*; class MyPanel1 extends Panel {
Checkbox box1,box2,box3; CheckboxGroup sex; MyPanel1(){
sex = new CheckboxGroup(); box1 = new Checkbox(\男\ box2 = new Checkbox(\女\ setLayout(new GridLayout(3,1));
服装制版视频淘宝才智在线
}
add(new Label(\性别\ add(box1); add(box2); }
class MyPanel2 extends Panel { }
class MyPanel3 extends Panel {
Checkbox box1,box2,box3; MyPanel3(){
box1 = new Checkbox(\读书\ box2 = new Checkbox(\电脑\ box3 = new Checkbox(\电影\ setLayout(new GridLayout(4,1)); add(new Label(\爱好\ add(box1); add(box2); add(box3); List list; MyPanel2(){
list = new List(4,false); list.add(\学生\ list.add(\教师\ list.add(\高工\
setLayout(new GridLayout(4,1)); add(new Label(\职业\ add(list); }
服装制版视频淘宝才智在线