java編程界面設計

A. 用java語言設計一個界面，

1. 首先：採用什麼技術實現

java語言可以使用awt 和swing等技術實現圖形界面

推薦使用Swing，因為Swing比AWT更專業，更漂亮，組件更豐富，功能更強大。

2. 其次：分析採用什麼布局

邊界布局BorderLayout，配合表格布局GridLayout，既簡單又美觀

3. 最後：分析需求中需要用的組件

學生姓名 學號 顯示信息 需要用到文本框JTextField

單選按鈕 需要用到組件JRadioButton

復選框 需要用到組件JCheckBox

組合框 需要用到組件JComboBox

圖片效果

//導入所需要的包
importjava.awt.event.*;
importjavax.swing.border.*;
importjavax.swing.*;
importjava.awt.*;
{//寫一個類繼承自JFrame窗體
//定義組件
=1L;
privateJPanelcontentPane;
privateJTextFieldtfName,tfNum,allInfo;
privateJRadioButtonrb1,rb2;
privateJCheckBoxcb1,cb2,cb3;
privateJComboBox<String>t1,t2,t3;
publicstaticvoidmain(String[]args){
EventQueue.invokeLater(newRunnable(){
publicvoidrun(){
try{
ClassFrameframe=newClassFrame();//創建一個窗口實例
frame.setVisible(true);//讓該窗口實例可見
}catch(Exceptione){
e.printStackTrace();
}
}
});
}
/**
*窗口屬性的設置,內部組件的初始化
*/
publicClassFrame(){
setTitle("選課ing...");//標題
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//設置關閉是退出JVM
setSize(450,339);//設置窗體大小
setLocationRelativeTo(null);//窗體居中
contentPane=newJPanel();//內容面板
contentPane.setBorder(newEmptyBorder(5,5,5,5));
contentPane.setLayout(newBorderLayout(0,0));//設置布局
setContentPane(contentPane);
JPanelpanel=newJPanel(newGridLayout(5,1,5,10));//5行1列的表格布局
panel.setBorder(newTitledBorder(null,"",TitledBorder.LEADING,TitledBorder.TOP,null,null));
contentPane.add(panel,BorderLayout.CENTER);//給panel添加邊框
JPanelpanel_1=newJPanel();
panel.add(panel_1);
JLabellabel=newJLabel("姓名");
panel_1.add(label);
tfName=newJTextField();
panel_1.add(tfName);
tfName.setColumns(10);
JLabellabel_2=newJLabel("學號");
panel_1.add(label_2);
tfNum=newJTextField();
tfNum.setColumns(10);
panel_1.add(tfNum);
rb1=newJRadioButton("男");
panel_1.add(rb1);
rb1.setSelected(true);//設置單選按鈕中,默認選擇的按鈕
rb2=newJRadioButton("女");
panel_1.add(rb2);
ButtonGroupbts=newButtonGroup();//單選按鈕需要加入同一個ButonGroup中才能生效
bts.add(rb1);
bts.add(rb2);
JPanelpanel_2=newJPanel();
panel.add(panel_2);
cb1=newJCheckBox("高等數學");
panel_2.add(cb1);
t1=newJComboBox<String>();
t1.setModel(newDefaultComboBoxModel<String>(newString[]{"林老師","趙老師","孫老師"}));
panel_2.add(t1);
JPanelpanel_3=newJPanel();
panel.add(panel_3);
cb2=newJCheckBox("世界經濟");
panel_3.add(cb2);
t2=newJComboBox<String>();
t2.setModel(newDefaultComboBoxModel<String>(newString[]{"張老師","劉老師"}));
panel_3.add(t2);
JPanelpanel_4=newJPanel();
panel.add(panel_4);
cb3=newJCheckBox("音樂賞析");
panel_4.add(cb3);
t3=newJComboBox<String>();
t3.setModel(newDefaultComboBoxModel<String>(newString[]{"王老師","周老師"}));
panel_4.add(t3);
JPanelpanel_5=newJPanel();
panel.add(panel_5);
JButtonjbOk=newJButton("確定");
panel_5.add(jbOk);
JButtonjbRest=newJButton("重填");
panel_5.add(jbRest);
JPanelpanelSouth=newJPanel();
contentPane.add(panelSouth,BorderLayout.SOUTH);
JLabellabe=newJLabel("選課信息");
labe.setHorizontalAlignment(SwingConstants.LEFT);
panelSouth.add(labe);
allInfo=newJTextField();
allInfo.setColumns(30);
panelSouth.add(allInfo);
JPanelpanelNorth=newJPanel();
contentPane.add(panelNorth,BorderLayout.NORTH);
JLabellabelTitle=newJLabel("學生選課界面");
labelTitle.setForeground(Color.DARK_GRAY);
labelTitle.setFont(newFont("宋體",Font.BOLD,20));
panelNorth.add(labelTitle);

//給確定按鈕添加事件處理代碼
jbOk.addActionListener(newActionListener(){
publicvoidactionPerformed(ActionEvente){
StringBuilderinfo=newStringBuilder();
Stringname=tfName.getText();
Stringnum=tfNum.getText();
Stringsex;
if(rb1.isSelected()){
sex="男";
}else{
sex="女";
}
info.append(name+num+sex);
if(cb1.isSelected()){
Stringc=cb1.getText();
Stringt=t1.getSelectedItem().toString();
info.append(""+c+t);
}
if(cb2.isSelected()){
Stringc=cb2.getText();
Stringt=t2.getSelectedItem().toString();
info.append(""+c+t);

}
if(cb3.isSelected()){
Stringc=cb3.getText();
Stringt=t3.getSelectedItem().toString();
info.append(""+c+t);
}
allInfo.setText(info.toString());//把學生信息和選課信息放到文本框
}
});
//給重填按鈕設置事件處理代碼
jbRest.addActionListener(newActionListener(){
publicvoidactionPerformed(ActionEvente){
tfName.setText("");
tfNum.setText("");
rb1.setSelected(true);
cb1.setSelected(false);
t1.setSelectedIndex(0);
cb2.setSelected(false);
t2.setSelectedIndex(0);
cb3.setSelected(false);
t3.setSelectedIndex(0);
allInfo.setText("");
}
});
}
}

B. 用java設計一個簡單的界面設計，越簡單越好，謝謝

用java設計一個簡單的界面可以參考如下實例：

importjavax.swing.JFrame;//框架
importjavax.swing.JPanel;//面板
importjavax.swing.JButton;//按鈕
importjavax.swing.JLabel;//標簽
importjavax.swing.JTextField;//文本框
importjava.awt.Font;//字體
importjava.awt.Color;//顏色
importjavax.swing.JPasswordField;//密碼框
importjava.awt.event.ActionListener;//事件監聽
importjava.awt.event.ActionEvent;//事件處理
importjavax.swing.JOptionPane;//消息窗口{
publicJPanelpnluser;
publicJLabellbluserLogIn;
publicJLabellbluserName;
publicJLabellbluserPWD;
publicJTextFieldtxtName;
publicJPasswordFieldpwdPwd;
publicJButtonbtnSub;
publicJButtonbtnReset;
publicUserLogIn(){
pnluser=newJPanel();
lbluserLogIn=newJLabel();
lbluserName=newJLabel();
lbluserPWD=newJLabel();
txtName=newJTextField();
pwdPwd=newJPasswordField();
btnSub=newJButton();
btnReset=newJButton();
userInit();
}
publicvoiserInit(){
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//設置關閉框架的同時結束程序
this.setSize(300,200);//設置框架大小為長300,寬200
this.setResizable(false);//設置框架不可以改變大小
this.setTitle("用戶登錄");//設置框架標題
this.pnluser.setLayout(null);//設置面板布局管理
this.pnluser.setBackground(Color.cyan);//設置面板背景顏色
this.lbluserLogIn.setText("用戶登錄");//設置標簽標題
this.lbluserLogIn.setFont(newFont("宋體",Font.BOLD|Font.ITALIC,14));//設置標簽字體
this.lbluserLogIn.setForeground(Color.RED);//設置標簽字體顏色
this.lbluserName.setText("用戶名:");
this.lbluserPWD.setText("密碼:");
this.btnSub.setText("登錄");
this.btnReset.setText("重置");
this.lbluserLogIn.setBounds(120,15,60,20);//設置標簽x坐標120,y坐標15,長60,寬20
this.lbluserName.setBounds(50,55,60,20);
this.lbluserPWD.setBounds(50,85,60,25);
this.txtName.setBounds(110,55,120,20);
this.pwdPwd.setBounds(110,85,120,20);
this.btnSub.setBounds(85,120,60,20);
this.btnSub.addActionListener(newActionListener()//匿名類實現ActionListener介面
{
publicvoidactionPerformed(ActionEvente){
btnsub_ActionEvent(e);
}
}
);
this.btnReset.setBounds(155,120,60,20);
this.btnReset.addActionListener(newActionListener()//匿名類實現ActionListener介面
{
publicvoidactionPerformed(ActionEvente){
btnreset_ActionEvent(e);
}
}
);
this.pnluser.add(lbluserLogIn);//載入標簽到面板
this.pnluser.add(lbluserName);
this.pnluser.add(lbluserPWD);
this.pnluser.add(txtName);
this.pnluser.add(pwdPwd);
this.pnluser.add(btnSub);
this.pnluser.add(btnReset);
this.add(pnluser);//載入面板到框架
this.setVisible(true);//設置框架可顯
}
publicvoidbtnsub_ActionEvent(ActionEvente){
Stringname=txtName.getText();
Stringpwd=String.valueOf(pwdPwd.getPassword());
if(name.equals("")){
JOptionPane.showMessageDialog(null,"賬號不能為空","錯誤",JOptionPane.ERROR_MESSAGE);
return;
}elseif(pwd.equals("")){
JOptionPane.showMessageDialog(null,"密碼不能為空","錯誤",JOptionPane.ERROR_MESSAGE);
return;
}elseif(true){
this.dispose();
}else{
JOptionPane.showMessageDialog(null,"賬號或密碼錯誤","錯誤",JOptionPane.ERROR_MESSAGE);
return;
}
}
publicvoidbtnreset_ActionEvent(ActionEvente){
txtName.setText("");
pwdPwd.setText("");
}
publicstaticvoidmain(String[]args){
newUserLogIn();
}
}