java隐藏界面_java点击按键之后，另一个界面隐藏

java中，注册界面成功后，点击确认，使得注册界面消失。代码如下，求大神指点！！packageclient.login;importjava.awt.Button;importjava.awt.Frame;importjava.awt.GridLayout;impor...

java中，注册界面成功后，点击确认，使得注册界面消失。代码如下，求大神指点！！

package client.login;

import java.awt.Button;

import java.awt.Frame;

import java.awt.GridLayout;

import java.awt.Label;

import java.awt.TextField;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import javax.swing.JOptionPane;

import com.liang.view.StudentView;

public class Register {

public static void main(String[] args) throws IOException{

File xx=new File("f:/信息.txt");

final BufferedWriter bws=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(xx)));

BufferedReader brs=new BufferedReader(new InputStreamReader(new FileInputStream(xx)));

Frame fr=new Frame("注册");

Label be1=new Label("姓名：",Label.CENTER);

Label be2=new Label("密码：",Label.CENTER);

Label be3=new Label("确认密码：",Label.CENTER);

final TextField[] tf=new TextField[]{

new TextField(20),new TextField(20),new TextField(20)};

// final TextField tf2=new TextField(20);

// final TextField tf3=new TextField(20);

Button btok=new Button("注册");

Button btce=new Button("取消");

btok.addActionListener(new ActionListener(){

@Override

public void actionPerformed(ActionEvent e){

// TODO Auto-generated method stub

String name=tf[0].getText(),psw = tf[1].getText(),again=tf[2].getText();

if("".equals(name)){

JOptionPane.showMessageDialog(null,"用户名空了");

return;}

if("".equals(psw)){

JOptionPane.showMessageDialog(null,"密码空了");

return;}

if(psw.length()<5||psw.length()>18){

JOptionPane.showMessageDialog(null,"密码不合格，长度应在5~17位之间");

return;}

if("".equals(again)){

JOptionPane.showMessageDialog(null,"确认密码为空");

return;}

if(!psw.equals(again)){

JOptionPane.showMessageDialog(null,"两次密码不一致，请从新输入");

return;}

JOptionPane.showMessageDialog(null,"恭喜登录成功");

FrmLogin sv=new FrmLogin();

sv.setVisible(true);

//Register.this.setVisible(false);//打开聊天室之后隐藏登录界面

try {

bws.write("用户名："+name);

bws.newLine();

bws.write("密码为："+psw);

bws.newLine();

bws.close();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

}});

btce.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if(JOptionPane.showConfirmDialog(null,"退出？","what",JOptionPane.OK_CANCEL_OPTION)==JOptionPane.YES_OPTION)

System.exit(0);}});

fr.setLayout(new GridLayout(4,4));

fr.add(be1);fr.add(tf[0]);

fr.add(be2);fr.add(tf[1]);

fr.add(be3);fr.add(tf[2]);

fr.add(btok);fr.add(btce);

fr.pack();

fr.setVisible(true);

}

}

展开