「JAVA界面设计案例」java界面设计教程
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本文目录一览:
- 1、编写一个Java应用程序,窗体上有一个单选按钮,具体界面设计如下(只需要代码):
- 2、Java编程 设计一个图形用户界面。界面包括三个单选按钮、两个复选框、一个列表、一个文本区和一个按
- 3、用java设计一个简单的界面设计,越简单越好,谢谢
- 4、java编程 完成下图所示的图形用户界面设计(窗口标题为你的真实学号及姓名,例如:11930670
- 5、用Java语言设计一个界面,
- 6、java界面设计
编写一个Java应用程序,窗体上有一个单选按钮,具体界面设计如下(只需要代码):
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
public class aaa
{
/**
* @param args
*/
public static void main(String[] args)
{
TextFrame frame = new TextFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
class TextFrame extends JFrame
{
public TextFrame()
{
setTitle("考试题目");
setBounds(300,300,200,120);
TextPanel panel = new TextPanel();
add(panel);
}
}
class TextPanel extends JPanel
{
private JRadioButton r1,r2;
public TextPanel()
{
//实例化单选按钮
r1 = new JRadioButton("男");
r2 = new JRadioButton("女");
JPanel p = new JPanel();
p.setBorder(BorderFactory.createTitledBorder("请选择性别"));
p.add(r1);
p.add(r2);
ButtonGroup bg = new ButtonGroup();
//将需要划分为一组的单选按钮对象添加到按钮组(注意只是逻辑上添加 和界面没有关系)
bg.add(r1);
bg.add(r2);
add(p);
}
}
Java编程 设计一个图形用户界面。界面包括三个单选按钮、两个复选框、一个列表、一个文本区和一个按
程序如下:
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
public class JFrameDemo extends JFrame implements ActionListener
{
private JPanel panel;
private JButton button;
private JTextArea textArea;
private JCheckBox musicBox;
private JCheckBox danceBox;
private JRadioButton hanButton;
private JRadioButton manButton;
private JRadioButton huiButton;
private ButtonGroup buttonGroup;
public JFrameDemo()
{
panel = new JPanel();
button = new JButton("确定");
textArea = new JTextArea(40,30);
musicBox = new JCheckBox("唱歌");
danceBox = new JCheckBox("跳舞");
huiButton = new JRadioButton("回族");
hanButton = new JRadioButton("汉族");
manButton = new JRadioButton("满族");
buttonGroup = new ButtonGroup();
buttonGroup.add(huiButton);
buttonGroup.add(hanButton);
buttonGroup.add(manButton);
panel.setLayout(new FlowLayout(3));
panel.add(huiButton);
panel.add(hanButton);
panel.add(manButton);
panel.add(musicBox);
panel.add(danceBox);
panel.add(button);
panel.add(textArea);
add(panel);
setTitle("选择兴趣爱好");
setBounds(100, 100, 400, 280);
setResizable(false);
setVisible(true);
this.button.addActionListener(this);
}
public static void main(String[] args)
{
new JFrameDemo();
}
@Override
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == this.button)
{
String info = "";
if(this.huiButton.isSelected())
{
info += this.huiButton.getText() + "\n";
}
if(this.hanButton.isSelected())
{
info += this.hanButton.getText() + "\n";
}
if(this.manButton.isSelected())
{
info += this.manButton.getText() + "\n";
}
if(this.danceBox.isSelected())
{
info += this.danceBox.getText() + "\n";
}
if(this.musicBox.isSelected())
{
info += this.musicBox.getText() + "\n";
}
this.textArea.setText(info);
}
}
}
有问题欢迎提问,满意请采纳,谢谢!
用java设计一个简单的界面设计,越简单越好,谢谢
用java设计一个简单的界面可以参考如下实例:
import javax.swing.JFrame;//框架
import javax.swing.JPanel;//面板
import javax.swing.JButton;//按钮
import javax.swing.JLabel;//标签
import javax.swing.JTextField;//文本框
import java.awt.Font;//字体
import java.awt.Color;//颜色
import javax.swing.JPasswordField;//密码框
import java.awt.event.ActionListener;//事件监听
import java.awt.event.ActionEvent;//事件处理
import javax.swing.JOptionPane;//消息窗口public class UserLogIn extends JFrame{
public JPanel pnluser;
public JLabel lbluserLogIn;
public JLabel lbluserName;
public JLabel lbluserPWD;
public JTextField txtName;
public JPasswordField pwdPwd;
public JButton btnSub;
public JButton btnReset;
public UserLogIn(){
pnluser = new JPanel();
lbluserLogIn = new JLabel();
lbluserName = new JLabel();
lbluserPWD = new JLabel();
txtName = new JTextField();
pwdPwd = new JPasswordField();
btnSub = new JButton();
btnReset = new JButton();
userInit();
}
public void userInit(){
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置关闭框架的同时结束程序
this.setSize(300,200);//设置框架大小为长300,宽200
this.setResizable(false);//设置框架不可以改变大小
this.setTitle("用户登录");//设置框架标题
this.pnluser.setLayout(null);//设置面板布局管理
this.pnluser.setBackground(Color.cyan);//设置面板背景颜色
this.lbluserLogIn.setText("用户登录");//设置标签标题
this.lbluserLogIn.setFont(new Font("宋体",Font.BOLD | Font.ITALIC,14));//设置标签字体
this.lbluserLogIn.setForeground(Color.RED);//设置标签字体颜色
this.lbluserName.setText("用户名:");
this.lbluserPWD.setText("密 码:");
this.btnSub.setText("登录");
this.btnReset.setText("重置");
this.lbluserLogIn.setBounds(120,15,60,20);//设置标签x坐标120,y坐标15,长60,宽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(new ActionListener()//匿名类实现ActionListener接口
{
public void actionPerformed(ActionEvent e){
btnsub_ActionEvent(e);
}
}
);
this.btnReset.setBounds(155,120,60,20);
this.btnReset.addActionListener(new ActionListener()//匿名类实现ActionListener接口
{
public void actionPerformed(ActionEvent e){
btnreset_ActionEvent(e);
}
}
);
this.pnluser.add(lbluserLogIn);//加载标签到面板
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);//加载面板到框架
this.setVisible(true);//设置框架可显
}
public void btnsub_ActionEvent(ActionEvent e){
String name = txtName.getText();
String pwd = String.valueOf(pwdPwd.getPassword());
if(name.equals("")){
JOptionPane.showMessageDialog(null,"账号不能为空","错误",JOptionPane.ERROR_MESSAGE);
return;
}else if (pwd.equals("")){
JOptionPane.showMessageDialog(null,"密码不能为空","错误",JOptionPane.ERROR_MESSAGE);
return;
}else if(true){
this.dispose();
}else{
JOptionPane.showMessageDialog(null,"账号或密码错误","错误",JOptionPane.ERROR_MESSAGE);
return;
}
}
public void btnreset_ActionEvent(ActionEvent e){
txtName.setText("");
pwdPwd.setText("");
}
public static void main(String[] args){
new UserLogIn();
}
}
java编程 完成下图所示的图形用户界面设计(窗口标题为你的真实学号及姓名,例如:11930670
好像是作业, 源代码发给你参考, 注意学习下代码. 了解下布局 和按钮的工作原理
参考代码
import java.awt.*;
import java.awt.event.*;
public class MyRandomFrame extends Frame implements ActionListener {
private final TextField tf1;
private final TextField tf2;
private final TextField tf3;
public static void main(String[] args) {
new MyRandomFrame().setVisible(true);
}
public MyRandomFrame() {
setSize(600, 100);
setLocationRelativeTo(null);
setTitle("学号:XXXXX 姓名:张三");
Button but1 = new Button("获取1~100之间的随机数");
but1.setActionCommand("随即");
but1.addActionListener(this);
Label label1 = new Label("第一个数:");
tf1 = new TextField(5);
Label label2 = new Label("第二个数:");
tf2 = new TextField(5);
Button but2 = new Button("求和");
but2.setActionCommand("求和");
but2.addActionListener(this);
tf3 = new TextField(5);
setLayout(new FlowLayout());
add(but1);
add(label1);
add(tf1);
add(label2);
add(tf2);
add(but2);
add(tf3);
addWindowListener(new WindowAdapter() {// 关闭窗口
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
@Override
public void actionPerformed(ActionEvent e) {
String command = e.getActionCommand();
if (command.equals("随即")) {
int a = (int) (Math.random() * 100);
int b = (int) (Math.random() * 100);
tf1.setText(String.valueOf(a));
tf2.setText(String.valueOf(b));
} else if (command.equals("求和")) {
int x = Integer.parseInt(tf1.getText());
int y = Integer.parseInt(tf2.getText());
tf3.setText(String.valueOf((x + y)));
}
}
}
用Java语言设计一个界面,
首先:采用什么技术实现
java语言可以使用awt 和swing等技术实现图形界面
推荐使用Swing,因为Swing比AWT更专业,更漂亮,组件更丰富,功能更强大。
2. 其次:分析采用什么布局
边界布局BorderLayout,配合表格布局GridLayout,既简单又美观
3. 最后:分析需求中需要用的组件
学生姓名 学号 显示信息 需要用到文本框JTextField
单选按钮 需要用到组件 JRadioButton
复选框 需要用到组件 JCheckBox
组合框 需要用到组件 JComboBox
图片效果
参考代码如下
//导入所需要的包
import java.awt.event.*;
import javax.swing.border.*;
import javax.swing.*;
import java.awt.*;
public class ClassFrame extends JFrame {// 写一个类继承自JFrame 窗体
// 定义组件
private static final long serialVersionUID = 1L;
private JPanel contentPane;
private JTextField tfName, tfNum, allInfo;
private JRadioButton rb1, rb2;
private JCheckBox cb1, cb2, cb3;
private JComboBoxString t1, t2, t3;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
ClassFrame frame = new ClassFrame();// 创建一个窗口实例
frame.setVisible(true);// 让该窗口实例可见
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* 窗口属性的设置,内部组件的初始化
*/
public ClassFrame() {
setTitle("选课ing...");//标题
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭是退出JVM
setSize(450, 339);// 设置窗体大小
setLocationRelativeTo(null);// 窗体居中
contentPane = new JPanel();// 内容面板
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));// 设置布局
setContentPane(contentPane);
JPanel panel = new JPanel(new GridLayout(5, 1, 5, 10));//5行1列的表格布局
panel.setBorder(new TitledBorder(null, "", TitledBorder.LEADING, TitledBorder.TOP, null, null));
contentPane.add(panel, BorderLayout.CENTER);//给panel添加边框
JPanel panel_1 = new JPanel();
panel.add(panel_1);
JLabel label = new JLabel("姓名");
panel_1.add(label);
tfName = new JTextField();
panel_1.add(tfName);
tfName.setColumns(10);
JLabel label_2 = new JLabel("学号");
panel_1.add(label_2);
tfNum = new JTextField();
tfNum.setColumns(10);
panel_1.add(tfNum);
rb1 = new JRadioButton("男");
panel_1.add(rb1);
rb1.setSelected(true);//设置单选按钮中,默认选择的按钮
rb2 = new JRadioButton("女");
panel_1.add(rb2);
ButtonGroup bts = new ButtonGroup();//单选按钮需要加入同一个ButonGroup中才能生效
bts.add(rb1);
bts.add(rb2);
JPanel panel_2 = new JPanel();
panel.add(panel_2);
cb1 = new JCheckBox("高等数学");
panel_2.add(cb1);
t1 = new JComboBoxString();
t1.setModel(new DefaultComboBoxModelString(new String[] { "林老师", "赵老师", "孙老师" }));
panel_2.add(t1);
JPanel panel_3 = new JPanel();
panel.add(panel_3);
cb2 = new JCheckBox("世界经济");
panel_3.add(cb2);
t2 = new JComboBoxString();
t2.setModel(new DefaultComboBoxModelString(new String[] { "张老师", "刘老师" }));
panel_3.add(t2);
JPanel panel_4 = new JPanel();
panel.add(panel_4);
cb3 = new JCheckBox("音乐赏析");
panel_4.add(cb3);
t3 = new JComboBoxString();
t3.setModel(new DefaultComboBoxModelString(new String[] { "王老师", "周老师" }));
panel_4.add(t3);
JPanel panel_5 = new JPanel();
panel.add(panel_5);
JButton jbOk = new JButton("确定");
panel_5.add(jbOk);
JButton jbRest = new JButton("重填");
panel_5.add(jbRest);
JPanel panelSouth = new JPanel();
contentPane.add(panelSouth, BorderLayout.SOUTH);
JLabel labe = new JLabel("选课信息");
labe.setHorizontalAlignment(SwingConstants.LEFT);
panelSouth.add(labe);
allInfo = new JTextField();
allInfo.setColumns(30);
panelSouth.add(allInfo);
JPanel panelNorth = new JPanel();
contentPane.add(panelNorth, BorderLayout.NORTH);
JLabel labelTitle = new JLabel("学生选课界面");
labelTitle.setForeground(Color.DARK_GRAY);
labelTitle.setFont(new Font("宋体", Font.BOLD, 20));
panelNorth.add(labelTitle);
//给确定按钮添加事件处理代码
jbOk.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
StringBuilder info = new StringBuilder();
String name = tfName.getText();
String num = tfNum.getText();
String sex;
if (rb1.isSelected()) {
sex = "男";
} else {
sex = "女";
}
info.append(name + num + sex);
if (cb1.isSelected()) {
String c = cb1.getText();
String t = t1.getSelectedItem().toString();
info.append(" " + c + t);
}
if (cb2.isSelected()) {
String c = cb2.getText();
String t = t2.getSelectedItem().toString();
info.append(" " + c + t);
}
if (cb3.isSelected()) {
String c = cb3.getText();
String t = t3.getSelectedItem().toString();
info.append(" " + c + t);
}
allInfo.setText(info.toString());//把学生信息和选课信息放到文本框
}
});
//给重填按钮 设置事件处理代码
jbRest.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
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("");
}
});
}
}
java界面设计
package jisuanqi_new;
import java.awt.*;
import java.awt.event.*;
public class JiSuanQi_new implements ActionListener
{
Panel p1;//声明面板p1
TextField t1;//声明文本行t1
String[] label = {"7","8","9","/","4","5","6","*","1","2","3","-","0",".","=","+"};//声明标签数组label1存放按钮上的标签
Button[] b;//声明按钮数组存放16个按钮
private int i;//声明i以备后用
private String op1 = "0";//运算数备用
private String operator = "+";//运算符备用
private boolean append = false;//备用
public JiSuanQi_new()//构造方法
{
t1=new TextField();//初始化文本行t1
b = new Button[label.length];//初始化按钮数组b
p1=new Panel();//初始化面板p1
p1.setLayout(new GridLayout(4,4,4,4));//使面板选择网格布局管理器以备储存16个按钮(4行4列)
for(int i=0;ib.length;i++)//利用for循环把标签放在按钮上,使每个按钮添加事件监听器,在面板p1上添加上16个按钮
{
b[i] = new Button(label[i]);//把标签依次放在16个按钮上
b[i].addActionListener(this);//使每个按钮添加动作事件监听器
p1.add(b[i]); //分别将按钮添加到面板p1上
}
Frame f=new Frame("计算器1.0");//初始化窗口f,起名字计算器1.0
f.setLayout(new BorderLayout());//为窗口选择边界布局管理器
f.add(BorderLayout.NORTH,t1);//把文本行他添加到窗口的北部
f.add(BorderLayout.CENTER,p1);//把面吧p1添加到窗口的中间
f.addWindowListener(new WindowAdapter(){//给窗口f添加窗口事件监听器
public void windowClosing(WindowEvent eve){//运行窗口关闭方法
System.exit(0);//退出程序
}
});
f.setSize(250, 250);//设置窗口大小
f.setLocation(200,200);
f.setVisible(true);//显示窗口
}
public static void main(String args[])
{
new JiSuanQi_new(); //调用构造方法
}
public void actionPerformed(ActionEvent ae)
{//按钮被操作发生
String comm = ae.getActionCommand();//返回与此动作相关的命令字符串,即:使用者第一次点击的按钮是什么。
if("0123456789".indexOf(comm)!=-1)//如果相关命令字符串为0~9之间的数字则执行
{
if(append){
String temp = t1.getText();//新数字
t1.setText(temp+comm);
}else{ //因为此时append为false执行这个
t1.setText(comm); //将文本行t1设置为相关命令字符串(你按中的按钮代码)
append = true;//此时append=true若继续按按钮若继续按数字的话1.第一次的按话不会改变2.非第一次按得话会覆盖之前按得数字(即缺点:只能进行单个数字的计算)
}
}
else if(("+-*/".indexOf(comm)!=-1))//如果相关命令字符串为+-*/之间的数字则执行
{
//保存
//t1.setText(comm);
op1 = t1.getText();//把第一个数赋值给op1
operator = comm;//把命令字符串赋值给operator
append = false;//此时append为false即若继续按按钮若按数字的话将重复上面的动作,按符号的话将覆盖之前的符号
}
else if("=".equals(comm))//如果按的是=号,则按条件进行下面的运算
{
String op2 = t1.getText();//op2第二个数
double d1 = Double.parseDouble(op1);
double d2 = Double.parseDouble(op2);
if(operator.equals("+")){
d1 = d1 + d2 ;
}else if(operator.equals("-")){
d1 = d1 - d2;
}else if(operator.equals("*")){
d1 = d1 * d2;
}else {
d1 = d1 / d2;
}
t1.setText(d1+"");//显示计算结果
append = false;
}
else if(".".equals(comm))//若是.号继续按
{
String temp = t1.getText();
if(temp.indexOf(".")==-1){
t1.setText(temp+".");
append = true;
}
}
}
}
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发布于:2022-12-18,除非注明,否则均为
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