给之前的口算题生成软件构建合适的GUI界面（注意不能直接提交课程案例中的界面代码），并尝试到处exe可运行文件。提交实现效果截图及相关代码。
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package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Test extends JFrame{
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
private int max = 50;
private int a = 0;
private int b = 0;
private int c = 0;
private int count = 1;
private JLabel JLgross = new JLabel("共5页");
private JLabel JLpage = new JLabel(); //页码控制
private JLabel jl1 = new JLabel(" "); //插两个空格进去
private JLabel JLhour = new JLabel();
private JLabel JLminute = new JLabel();
private JLabel JLseconds = new JLabel();
private JButton JB1 = new JButton("提交");
private JButton b1 = new JButton("首页");
private JButton b2 = new JButton("上一页");
private JButton b3 = new JButton("下一页");
private JButton b4 = new JButton("尾页");
private JButton b5 = new JButton("返回");
private JLabel jl[] = new JLabel[50]; //50个题目标签
private JTextField jtf[] = new JTextField[50];//50个文本框，存储答案
private JTextField jta[] = new JTextField[50];//50个文本框，存储结果
private JPanel pnl1 = new JPanel();
private JPanel pnl2 = new JPanel();
private JPanel pnl3 = new JPanel();
private JPanel pnl4 = new JPanel();
static CardLayout care = new CardLayout();
int[] answer=new int[max];
String[] studentAnswer=new String[max];
public long time = 0;
private void Event() {
//提交试卷按钮
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int correctAnswer=0;
for(int i=0,k=0;i<max;i++,k++){
studentAnswer[i]=jtf[k].getText().trim();
try {
if(Integer.parseInt(studentAnswer[i]) == answer[k]){
//将string字符串类型转换为integer整数类型
correctAnswer++;
}
}catch(NumberFormatException u) {
}
}
int score = 100*(int)correctAnswer/max;
String s="共50道题\n";
s=s+"答对"+correctAnswer+"道题\n";
s=s+"答错"+(max-correctAnswer)+"道题\n";
s=s+"成绩"+String.format("%d",score)+"分\n";
s=s+"正确率："+correctAnswer*100/50+"%\n";
s=s+"答题时间："+time+"秒";
// Object[] options ={ "确定", "取消" }; //自定义按钮上的文字
JOptionPane.showMessageDialog(null, s,"本次答题情况",JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, "即将返回首页面", "提示",JOptionPane.ERROR_MESSAGE);
// JOptionPane.showOptionDialog(null, "即将返回首页面", "提示",JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, options[0]);
new MainMenu();
setVisible(false);
dispose();
}
});
//首页
b1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.first(pnl3);
count = 1;
JLpage.setText("第" + count + "页");
}
});
//前一页
b2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.previous(pnl3);
if ( count > 1 && count <=5) {
count --;
}else {
count = 5 ;
}
JLpage.setText("第" + count + "页");
}
});
//下一页
b3.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.next(pnl3);
if ( count >= 1 && count < 5 ) {
count ++;
}else {
count = 1 ;
}
JLpage.setText("第" + count + "页");
}
});
//尾页
b4.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.last(pnl3);
count = 5;
JLpage.setText("第" + count + "页");
}
});
b5.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JOptionPane.showMessageDialog(null, "是否返回首页","提示",JOptionPane.ERROR_MESSAGE);
new MainMenu();
setVisible(false);
dispose();
}
});
}
public Test() {
this.setTitle("开始答题");
this.setSize(830, 500);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20)); //设置 各组件间水平垂直间隔为20像素
pnl1.add(JLhour);
pnl1.add(JLminute);
pnl1.add(JLseconds);
JLpage.setText("第" + count + "页");
pnl2.setLayout(new FlowLayout());
pnl2.add(JLgross);
pnl2.add(JLpage);//页数
pnl2.add(jl1);
pnl2.add(pnl1);
pnl2.add(JB1);
this.add(pnl2,BorderLayout.NORTH);
pnl3.setLayout(care);
this.add(pnl3,BorderLayout.CENTER);
pnl3.setBorder(BorderFactory.createLoweredBevelBorder()); //边框
for(int i = 0 , k = 0; i < 5 ; i++ ) { // 总页数改为5页
JPanel p = new JPanel();
p.setLayout(new GridLayout(5,2,20,20)); //网格布局5行2列，水平垂直间距都设为20像素
for(int j = 0 ; j < 10 ; j++) { // 每页输出10道题目
a=(int)(Math.random()*100+1);
b=(int)(Math.random()*100+1);
String random = "";
String[] doc = {"+", "-"};
int index = (int) (Math.random() * doc.length);
random = doc[index];
if(random=="-") {
if(a>b) {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a - b ;
}else {
jl[k] = new JLabel(b + random + a + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = b - a ;
}
}
else if(random=="+") {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a + b ;
}
jtf[k] = new JTextField(6);
p.add(jtf[k]);
jtf[k].setText(null);
k++;
}
pnl3.add(p);
}
pnl4.setLayout(new GridLayout(1,4));
pnl4.add(b1);
pnl4.add(b2);
pnl4.add(b3);
pnl4.add(b4);
pnl4.add(b5);
this.add(pnl4, BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
setVisible(true);
}
}
package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MainMenu extends JFrame {
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
protected static String s1;
protected static String s2;
protected static String s3;
private JLabel jl1 = new JLabel("欢迎使用");
private JLabel jl3 = new JLabel(" ");
private JLabel jl4 = new JLabel(" ");
private JButton JB1 = new JButton("开始答题");
private JButton JE = new JButton("退出登录");
private JPanel jp1 = new JPanel();
private JPanel jp2 = new JPanel();
private JPanel jp3 = new JPanel();
private JPanel jp4 = new JPanel();
private JPanel jp5 = new JPanel();
private JPanel jp6 = new JPanel();
private JPanel jp7 = new JPanel();
private void Event() {
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
new Test();
}
});
JE.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
}
});
}
public MainMenu() {
jl1.setFont(new Font("黑体", Font.BOLD, 35));
jl1.setForeground(Color.gray);
jl1.setHorizontalAlignment(JLabel.CENTER); // 水平居中对齐
jl1.setVerticalAlignment(JLabel.CENTER);
JB1.setFont(new Font("宋体", Font.PLAIN, 25));
JE.setFont(new Font("宋体", Font.PLAIN, 25));
jp1.add(jl1);
// ...
jp7.setLayout(new GridLayout(2, 1, 20, 20)); // 两行一列，设置组件之间的水平和垂直间距
jp7.setBorder(BorderFactory.createEmptyBorder(20, 0, 20, 0)); // 设置上下留白
this.setTitle("欢迎使用口算答题系统");
this.setSize(500, 450);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20));
jp1.setLayout(new GridBagLayout());
this.add(jp1,BorderLayout.NORTH);
jp7.add(JB1);
jp7.add(JE);
this.add(jp7,BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
this.setVisible(true);
}
public static void main(String[] args) {
new MainMenu();
}
}
package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Test extends JFrame{
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
private int max = 50;
private int a = 0;
private int b = 0;
private int c = 0;
private int count = 1;
private JLabel JLgross = new JLabel("共5页");
private JLabel JLpage = new JLabel(); //页码控制
private JLabel jl1 = new JLabel(" "); //插两个空格进去
private JLabel JLhour = new JLabel();
private JLabel JLminute = new JLabel();
private JLabel JLseconds = new JLabel();
private JButton JB1 = new JButton("提交");
private JButton b1 = new JButton("首页");
private JButton b2 = new JButton("上一页");
private JButton b3 = new JButton("下一页");
private JButton b4 = new JButton("尾页");
private JButton b5 = new JButton("返回");
private JLabel jl[] = new JLabel[50]; //50个题目标签
private JTextField jtf[] = new JTextField[50];//50个文本框，存储答案
private JTextField jta[] = new JTextField[50];//50个文本框，存储结果
private JPanel pnl1 = new JPanel();
private JPanel pnl2 = new JPanel();
private JPanel pnl3 = new JPanel();
private JPanel pnl4 = new JPanel();
static CardLayout care = new CardLayout();
int[] answer=new int[max];
String[] studentAnswer=new String[max];
public long time = 0;
private void Event() {
//提交试卷按钮
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int correctAnswer=0;
for(int i=0,k=0;i<max;i++,k++){
studentAnswer[i]=jtf[k].getText().trim();
try {
if(Integer.parseInt(studentAnswer[i]) == answer[k]){
//将string字符串类型转换为integer整数类型
correctAnswer++;
}
}catch(NumberFormatException u) {
}
}
int score = 100*(int)correctAnswer/max;
String s="共50道题\n";
s=s+"答对"+correctAnswer+"道题\n";
s=s+"答错"+(max-correctAnswer)+"道题\n";
s=s+"成绩"+String.format("%d",score)+"分\n";
s=s+"正确率："+correctAnswer*100/50+"%\n";
s=s+"答题时间："+time+"秒";
// Object[] options ={ "确定", "取消" }; //自定义按钮上的文字
JOptionPane.showMessageDialog(null, s,"本次答题情况",JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, "即将返回首页面", "提示",JOptionPane.ERROR_MESSAGE);
// JOptionPane.showOptionDialog(null, "即将返回首页面", "提示",JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, options[0]);
new MainMenu();
setVisible(false);
dispose();
}
});
//首页
b1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.first(pnl3);
count = 1;
JLpage.setText("第" + count + "页");
}
});
//前一页
b2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.previous(pnl3);
if ( count > 1 && count <=5) {
count --;
}else {
count = 5 ;
}
JLpage.setText("第" + count + "页");
}
});
//下一页
b3.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.next(pnl3);
if ( count >= 1 && count < 5 ) {
count ++;
}else {
count = 1 ;
}
JLpage.setText("第" + count + "页");
}
});
//尾页
b4.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.last(pnl3);
count = 5;
JLpage.setText("第" + count + "页");
}
});
b5.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JOptionPane.showMessageDialog(null, "是否返回首页","提示",JOptionPane.ERROR_MESSAGE);
new MainMenu();
setVisible(false);
dispose();
}
});
}
public Test() {
this.setTitle("开始答题");
this.setSize(830, 500);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20)); //设置 各组件间水平垂直间隔为20像素
pnl1.add(JLhour);
pnl1.add(JLminute);
pnl1.add(JLseconds);
JLpage.setText("第" + count + "页");
pnl2.setLayout(new FlowLayout());
pnl2.add(JLgross);
pnl2.add(JLpage);//页数
pnl2.add(jl1);
pnl2.add(pnl1);
pnl2.add(JB1);
this.add(pnl2,BorderLayout.NORTH);
pnl3.setLayout(care);
this.add(pnl3,BorderLayout.CENTER);
pnl3.setBorder(BorderFactory.createLoweredBevelBorder()); //边框
for(int i = 0 , k = 0; i < 5 ; i++ ) { // 总页数改为5页
JPanel p = new JPanel();
p.setLayout(new GridLayout(5,2,20,20)); //网格布局5行2列，水平垂直间距都设为20像素
for(int j = 0 ; j < 10 ; j++) { // 每页输出10道题目
a=(int)(Math.random()*100+1);
b=(int)(Math.random()*100+1);
String random = "";
String[] doc = {"+", "-"};
int index = (int) (Math.random() * doc.length);
random = doc[index];
if(random=="-") {
if(a>b) {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a - b ;
}else {
jl[k] = new JLabel(b + random + a + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = b - a ;
}
}
else if(random=="+") {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a + b ;
}
jtf[k] = new JTextField(6);
p.add(jtf[k]);
jtf[k].setText(null);
k++;
}
pnl3.add(p);
}
pnl4.setLayout(new GridLayout(1,4));
pnl4.add(b1);
pnl4.add(b2);
pnl4.add(b3);
pnl4.add(b4);
pnl4.add(b5);
this.add(pnl4, BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
setVisible(true);
}
}
package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MainMenu extends JFrame {
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
protected static String s1;
protected static String s2;
protected static String s3;
private JLabel jl1 = new JLabel("欢迎使用");
private JLabel jl3 = new JLabel(" ");
private JLabel jl4 = new JLabel(" ");
private JButton JB1 = new JButton("开始答题");
private JButton JE = new JButton("退出登录");
private JPanel jp1 = new JPanel();
private JPanel jp2 = new JPanel();
private JPanel jp3 = new JPanel();
private JPanel jp4 = new JPanel();
private JPanel jp5 = new JPanel();
private JPanel jp6 = new JPanel();
private JPanel jp7 = new JPanel();
private void Event() {
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
new Test();
}
});
JE.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
}
});
}
public MainMenu() {
jl1.setFont(new Font("黑体", Font.BOLD, 35));
jl1.setForeground(Color.gray);
jl1.setHorizontalAlignment(JLabel.CENTER); // 水平居中对齐
jl1.setVerticalAlignment(JLabel.CENTER);
JB1.setFont(new Font("宋体", Font.PLAIN, 25));
JE.setFont(new Font("宋体", Font.PLAIN, 25));
jp1.add(jl1);
// ...
jp7.setLayout(new GridLayout(2, 1, 20, 20)); // 两行一列，设置组件之间的水平和垂直间距
jp7.setBorder(BorderFactory.createEmptyBorder(20, 0, 20, 0)); // 设置上下留白
this.setTitle("欢迎使用口算答题系统");
this.setSize(500, 450);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20));
jp1.setLayout(new GridBagLayout());
this.add(jp1,BorderLayout.NORTH);
jp7.add(JB1);
jp7.add(JE);
this.add(jp7,BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
this.setVisible(true);
}
public static void main(String[] args) {
new MainMenu();
}
}
package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Test extends JFrame{
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
private int max = 50;
private int a = 0;
private int b = 0;
private int c = 0;
private int count = 1;
private JLabel JLgross = new JLabel("共5页");
private JLabel JLpage = new JLabel(); //页码控制
private JLabel jl1 = new JLabel(" "); //插两个空格进去
private JLabel JLhour = new JLabel();
private JLabel JLminute = new JLabel();
private JLabel JLseconds = new JLabel();
private JButton JB1 = new JButton("提交");
private JButton b1 = new JButton("首页");
private JButton b2 = new JButton("上一页");
private JButton b3 = new JButton("下一页");
private JButton b4 = new JButton("尾页");
private JButton b5 = new JButton("返回");
private JLabel jl[] = new JLabel[50]; //50个题目标签
private JTextField jtf[] = new JTextField[50];//50个文本框，存储答案
private JTextField jta[] = new JTextField[50];//50个文本框，存储结果
private JPanel pnl1 = new JPanel();
private JPanel pnl2 = new JPanel();
private JPanel pnl3 = new JPanel();
private JPanel pnl4 = new JPanel();
static CardLayout care = new CardLayout();
int[] answer=new int[max];
String[] studentAnswer=new String[max];
public long time = 0;
private void Event() {
//提交试卷按钮
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int correctAnswer=0;
for(int i=0,k=0;i<max;i++,k++){
studentAnswer[i]=jtf[k].getText().trim();
try {
if(Integer.parseInt(studentAnswer[i]) == answer[k]){
//将string字符串类型转换为integer整数类型
correctAnswer++;
}
}catch(NumberFormatException u) {
}
}
int score = 100*(int)correctAnswer/max;
String s="共50道题\n";
s=s+"答对"+correctAnswer+"道题\n";
s=s+"答错"+(max-correctAnswer)+"道题\n";
s=s+"成绩"+String.format("%d",score)+"分\n";
s=s+"正确率："+correctAnswer*100/50+"%\n";
s=s+"答题时间："+time+"秒";
// Object[] options ={ "确定", "取消" }; //自定义按钮上的文字
JOptionPane.showMessageDialog(null, s,"本次答题情况",JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, "即将返回首页面", "提示",JOptionPane.ERROR_MESSAGE);
// JOptionPane.showOptionDialog(null, "即将返回首页面", "提示",JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, options[0]);
new MainMenu();
setVisible(false);
dispose();
}
});
//首页
b1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.first(pnl3);
count = 1;
JLpage.setText("第" + count + "页");
}
});
//前一页
b2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.previous(pnl3);
if ( count > 1 && count <=5) {
count --;
}else {
count = 5 ;
}
JLpage.setText("第" + count + "页");
}
});
//下一页
b3.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.next(pnl3);
if ( count >= 1 && count < 5 ) {
count ++;
}else {
count = 1 ;
}
JLpage.setText("第" + count + "页");
}
});
//尾页
b4.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
care.last(pnl3);
count = 5;
JLpage.setText("第" + count + "页");
}
});
b5.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JOptionPane.showMessageDialog(null, "是否返回首页","提示",JOptionPane.ERROR_MESSAGE);
new MainMenu();
setVisible(false);
dispose();
}
});
}
public Test() {
this.setTitle("开始答题");
this.setSize(830, 500);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20)); //设置 各组件间水平垂直间隔为20像素
pnl1.add(JLhour);
pnl1.add(JLminute);
pnl1.add(JLseconds);
JLpage.setText("第" + count + "页");
pnl2.setLayout(new FlowLayout());
pnl2.add(JLgross);
pnl2.add(JLpage);//页数
pnl2.add(jl1);
pnl2.add(pnl1);
pnl2.add(JB1);
this.add(pnl2,BorderLayout.NORTH);
pnl3.setLayout(care);
this.add(pnl3,BorderLayout.CENTER);
pnl3.setBorder(BorderFactory.createLoweredBevelBorder()); //边框
for(int i = 0 , k = 0; i < 5 ; i++ ) { // 总页数改为5页
JPanel p = new JPanel();
p.setLayout(new GridLayout(5,2,20,20)); //网格布局5行2列，水平垂直间距都设为20像素
for(int j = 0 ; j < 10 ; j++) { // 每页输出10道题目
a=(int)(Math.random()*100+1);
b=(int)(Math.random()*100+1);
String random = "";
String[] doc = {"+", "-"};
int index = (int) (Math.random() * doc.length);
random = doc[index];
if(random=="-") {
if(a>b) {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a - b ;
}else {
jl[k] = new JLabel(b + random + a + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = b - a ;
}
}
else if(random=="+") {
jl[k] = new JLabel(a + random + b + "=");
jl[k].setFont(new Font("黑体",Font.BOLD,20));
p.add(jl[k]);
answer[k] = a + b ;
}
jtf[k] = new JTextField(6);
p.add(jtf[k]);
jtf[k].setText(null);
k++;
}
pnl3.add(p);
}
pnl4.setLayout(new GridLayout(1,4));
pnl4.add(b1);
pnl4.add(b2);
pnl4.add(b3);
pnl4.add(b4);
pnl4.add(b5);
this.add(pnl4, BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
setVisible(true);
}
}
package Operation;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MainMenu extends JFrame {
private static final long serialVersionUID = 1L; //定义程序序列化,1L是默认定义
protected static String s1;
protected static String s2;
protected static String s3;
private JLabel jl1 = new JLabel("欢迎使用");
private JLabel jl3 = new JLabel(" ");
private JLabel jl4 = new JLabel(" ");
private JButton JB1 = new JButton("开始答题");
private JButton JE = new JButton("退出登录");
private JPanel jp1 = new JPanel();
private JPanel jp2 = new JPanel();
private JPanel jp3 = new JPanel();
private JPanel jp4 = new JPanel();
private JPanel jp5 = new JPanel();
private JPanel jp6 = new JPanel();
private JPanel jp7 = new JPanel();
private void Event() {
JB1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
new Test();
}
});
JE.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
setVisible(false);
dispose();
}
});
}
public MainMenu() {
jl1.setFont(new Font("黑体", Font.BOLD, 35));
jl1.setForeground(Color.gray);
jl1.setHorizontalAlignment(JLabel.CENTER); // 水平居中对齐
jl1.setVerticalAlignment(JLabel.CENTER);
JB1.setFont(new Font("宋体", Font.PLAIN, 25));
JE.setFont(new Font("宋体", Font.PLAIN, 25));
jp1.add(jl1);
// ...
jp7.setLayout(new GridLayout(2, 1, 20, 20)); // 两行一列，设置组件之间的水平和垂直间距
jp7.setBorder(BorderFactory.createEmptyBorder(20, 0, 20, 0)); // 设置上下留白
this.setTitle("欢迎使用口算答题系统");
this.setSize(500, 450);
this.setLocationRelativeTo(null); //将此窗口置于屏幕的中央
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new BorderLayout(20,20));
jp1.setLayout(new GridBagLayout());
this.add(jp1,BorderLayout.NORTH);
jp7.add(JB1);
jp7.add(JE);
this.add(jp7,BorderLayout.SOUTH);
//美化界面
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
Event();
this.setVisible(true);
}
public static void main(String[] args) {
new MainMenu();
}
}
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