import java.awt.*;
import java.awt.event.*;public class deluqi{
public static void main (String args[]) {
Frame f;
Button b1,b2,b3;
Label l1,l2;
TextField t1,t2,t3;
f=new Frame("---登陆器---");
b1=new Button("登陆");
b1.setBounds(40,220,70,25);
f.add(b1);
b2=new Button("取消");
b2.setBounds(120,220,70,25);
f.add(b2);
b3=new Button("退出");
b3.setBounds(200,220,70,25);
f.add(b3);
l1=new Label("账号");
l1.setBounds(90,65,50,30);
f.add(l1);
l2=new Label("密码");
l2.setBounds(90,100,50,30);
f.add(l2);
t1=new TextField("36182831");
t1.setBounds(140,70,100,20);
f.add(t1);
t2=new TextField("******");
t2.setBounds(140,105,100,20);
f.add(t2);
t3=new TextField(" ");
t3.setBounds(140,150,100,60);
f.add(t3);
b1.addActionListener(new ButtonHandler1());
b2.addActionListener(new ButtonHandler2());
b3.addActionListener(new ButtonHandler3());
f.setLayout(null);
f.add(b1);
f.add(b2);
f.setSize(300,400);
f.setVisible(true);
}
}
class ButtonHandler1 implements ActionListener{
public void actionPerformed(ActionEvent e){
t3.setText("密码错误");
}
}
class ButtonHandler2 implements ActionListener{
public void actionPerformed(ActionEvent e){
t3.setText("已经取消");
}
}
class ButtonHandler3 implements ActionListener{
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
不知道又什么错误。
import java.awt.event.*;public class deluqi{
public static void main (String args[]) {
Frame f;
Button b1,b2,b3;
Label l1,l2;
TextField t1,t2,t3;
f=new Frame("---登陆器---");
b1=new Button("登陆");
b1.setBounds(40,220,70,25);
f.add(b1);
b2=new Button("取消");
b2.setBounds(120,220,70,25);
f.add(b2);
b3=new Button("退出");
b3.setBounds(200,220,70,25);
f.add(b3);
l1=new Label("账号");
l1.setBounds(90,65,50,30);
f.add(l1);
l2=new Label("密码");
l2.setBounds(90,100,50,30);
f.add(l2);
t1=new TextField("36182831");
t1.setBounds(140,70,100,20);
f.add(t1);
t2=new TextField("******");
t2.setBounds(140,105,100,20);
f.add(t2);
t3=new TextField(" ");
t3.setBounds(140,150,100,60);
f.add(t3);
b1.addActionListener(new ButtonHandler1());
b2.addActionListener(new ButtonHandler2());
b3.addActionListener(new ButtonHandler3());
f.setLayout(null);
f.add(b1);
f.add(b2);
f.setSize(300,400);
f.setVisible(true);
}
}
class ButtonHandler1 implements ActionListener{
public void actionPerformed(ActionEvent e){
t3.setText("密码错误");
}
}
class ButtonHandler2 implements ActionListener{
public void actionPerformed(ActionEvent e){
t3.setText("已经取消");
}
}
class ButtonHandler3 implements ActionListener{
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
不知道又什么错误。
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- 关于java打印的问题
帮您修改了下:
import java.awt.*;
import java.awt.event.*;public class DeLuQi
{
public static Frame f;
public static Button b1, b2, b3;
public static Label l1, l2;
public static TextField t1, t2, t3; public DeLuQi()
{ f = new Frame("---登陆器---");
b1 = new Button("登陆");
b1.setBounds(40, 220, 70, 25);
f.add(b1);
b2 = new Button("取消");
b2.setBounds(120, 220, 70, 25);
f.add(b2);
b3 = new Button("退出");
b3.setBounds(200, 220, 70, 25);
f.add(b3);
l1 = new Label("账号");
l1.setBounds(90, 65, 50, 30);
f.add(l1);
l2 = new Label("密码");
l2.setBounds(90, 100, 50, 30);
f.add(l2);
t1 = new TextField("36182831");
t1.setBounds(140, 70, 100, 20);
f.add(t1);
t2 = new TextField("******");
t2.setBounds(140, 105, 100, 20);
f.add(t2);
t3 = new TextField(" ");
t3.setBounds(140, 150, 100, 60);
f.add(t3);
b1.addActionListener(new ButtonHandler1());
b2.addActionListener(new ButtonHandler2());
b3.addActionListener(new ButtonHandler3());
f.setLayout(null);
f.add(b1);
f.add(b2);
f.setSize(300, 400);
f.setVisible(true);
} public static void main(String args[])
{
DeLuQi s = new DeLuQi();
}
}class ButtonHandler1 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
DeLuQi.t3.setText("密码错误");
}
}class ButtonHandler2 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
DeLuQi.t3.setText("已经取消");
}
}class ButtonHandler3 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
System.exit(0);
}
}
呵呵,楼主看看
import java.awt.event.*; public class deluqi{
public static TextField t3;
public static void main (String args[]) {
Frame f;
Button b1,b2,b3;
Label l1,l2;
TextField t1,t2; f=new Frame("---登陆器---");
b1=new Button("登陆");
b1.setBounds(40,220,70,25);
f.add(b1);
b2=new Button("取消");
b2.setBounds(120,220,70,25);
f.add(b2);
b3=new Button("退出");
b3.setBounds(200,220,70,25);
f.add(b3);
l1=new Label("账号");
l1.setBounds(90,65,50,30);
f.add(l1);
l2=new Label("密码");
l2.setBounds(90,100,50,30);
f.add(l2);
t1=new TextField("36182831");
t1.setBounds(140,70,100,20);
f.add(t1);
t2=new TextField("******");
t2.setBounds(140,105,100,20);
f.add(t2);
t3=new TextField(" ");
t3.setBounds(140,150,100,60);
f.add(t3);
b1.addActionListener(new ButtonHandler1());
b2.addActionListener(new ButtonHandler2());
b3.addActionListener(new ButtonHandler3());
f.setLayout(null);
f.add(b1);
f.add(b2);
f.setSize(300,400);
f.setVisible(true);
}
}
class ButtonHandler1 implements ActionListener{
public void actionPerformed(ActionEvent e){
deluqi.t3.setText("密码错误");
}
}
class ButtonHandler2 implements ActionListener{
public void actionPerformed(ActionEvent e){
deluqi.t3.setText("已经取消");
}
}
class ButtonHandler3 implements ActionListener{
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}