本文实例为大家分享了java swing实现答题系统的具体代码,供大家参考,具体内容如下
如上图所示,代码亲测可用,如下:
- import java.awt.BorderLayout;
- import java.awt.Color;
- import java.awt.GridLayout;
- import java.awt.event.ActionEvent;
- import java.awt.event.ActionListener;
- import java.awt.event.KeyEvent;
- import java.awt.event.KeyListener;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.Random;
- import javax.swing.JButton;
- import javax.swing.JFrame;
- import javax.swing.JLabel;
- import javax.swing.JPanel;
- import javax.swing.JTextField;
- /**
- * 2017-01-09
- * @author Koow
- *
- */
- public class sa extends JFrame implements ActionListener, KeyListener {
- private JLabel title = null;
- private JButton submit = null;
- private JPanel center = null;
- // items用来跳转
- private int item1 = 0;
- private int item2 = 1;
- private int item3 = 2;
- private int item4 = 3;
- private JLabel[] FormulaLabels; // 用来存放表达式的各个项
- private List<String> allResult; // 用来存放随机出来的结果
- private JTextField[] userResults; // 用来让用户输入结果
- private JLabel[] judge; // 用来显示图标,以显示用户输入的结果是否正确
- private List<String> inputResults = null; // 可以不要
- private JTextField scoreField = null;
- private int textCount = 1; // 用来记录当前焦点的位置
- public static void main(String[] args){
- sa s=new sa();
- }
- public sa() {
- // TODO Auto-generated constructor stub
- inputResults = new ArrayList<String>();
- // 实例化
- title = new JLabel("题目很简单,认真答哦!~(每题1分,答对加1分,答错不扣分!)");
- submit = new JButton("提交");
- submit.addActionListener(this);
- GridLayout layout = new GridLayout(21, 6);
- center = new JPanel(layout);
- // 调用方法实例化方法
- initLables();
- initUserRestult();
- initJudge();
- // 将各项填入到center面板(GridLayout)
- int count = 1;
- int formulaCount = 0;
- int userResultsCount = 0;
- int judgeCount = 0;
- while (count <= 120) {
- // 判断count%6,确定要填哪个组件
- if (count % 6 == 1 || count % 6 == 2 || count % 6 == 3 || count % 6 == 4) {
- center.add(FormulaLabels[formulaCount]);
- formulaCount++;
- } else if (count % 6 == 5) {
- center.add(userResults[userResultsCount]);
- userResultsCount++;
- } else if (count % 6 == 0) {
- center.add(judge[judgeCount]);
- judgeCount++;
- }
- count++;
- }
- center.add(new JLabel());
- center.add(new JLabel());
- center.add(new JLabel("总分:"));
- scoreField = new JTextField();
- scoreField.setEditable(false);
- center.add(scoreField);
- center.add(new JLabel());
- center.add(new JLabel());
- this.add(center, BorderLayout.CENTER);
- // 添加组件
- this.add(submit, BorderLayout.SOUTH);
- this.add(title, BorderLayout.NORTH);
- // 显示
- this.setLocation(400, 10);
- this.setVisible(true);
- this.setSize(500, 700);
- this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
- this.setTitle("简单测试系统");
- try {
- Thread.sleep(500);
- } catch (InterruptedException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- userResults[0].requestFocus();
- }
- /**
- * 这个方法用来初始化算式各项的数组
- */
- private void initLables() {
- int sum;
- int firstNumber;
- int secondNumber;
- allResult = new ArrayList<String>();
- // 建立算式标签
- this.FormulaLabels = new JLabel[80];
- // 将数组中的每一个标签都实例化
- for (int i = 0; i < 80; i++) {
- FormulaLabels[i] = new JLabel();
- }
- // 将表达式各项赋值内容,并将随机数的和算出结果存入Arraylist中,以便后期核对结果使用
- while (item4 < 80) {
- firstNumber = new Random().nextInt(99) + 1;
- FormulaLabels[item1].setText(String.valueOf(firstNumber));
- FormulaLabels[item2].setText("+");
- secondNumber = new Random().nextInt(99) + 1;
- FormulaLabels[item3].setText(String.valueOf(secondNumber));
- FormulaLabels[item4].setText("=");
- sum = firstNumber + secondNumber;
- allResult.add(String.valueOf(sum));
- item1 += 4;
- item2 += 4;
- item3 += 4;
- item4 += 4;
- }
- // for(int i=0;i<80;i++){
- // System.out.println(FormulaLabels[i].getText());
- // }
- }
- /**
- * 这个方法用来实例化userResults数组,并实例化里面的每一个JTextField
- */
- private void initUserRestult() {
- userResults = new JTextField[20];
- for (int i = 0; i < 20; i++) {
- userResults[i] = new JTextField();
- userResults[i].setSize(20, 20);
- // 后加的监听
- userResults[i].addKeyListener(this);
- }
- }
- /**
- * 这个方法用来实例化judge数组,并将里面的每一个Label实例化
- */
- private void initJudge() {
- judge = new JLabel[20];
- for (int i = 0; i < 20; i++) {
- judge[i] = new JLabel("好好算呦");
- }
- }
- // 实现监听方法,当用户点击提交后要做的事情
- @Override
- public void actionPerformed(ActionEvent arg0) {
- // TODO Auto-generated method stub
- int score = 0;
- for (int i = 0; i < 20; i++) {
- // 将用户输入的结果全部获取,存入一个ArrayList中,可以不要
- inputResults.add(userResults[i].getText().toString().trim());
- System.out.println(userResults[i].getText().toString());
- // 取出来用户输入的答案和之前算好的结果去比较,不对就把后面的标签设置为回答错误,
- // 如果正确就设置为回答正确
- String result = userResults[i].getText().toString().trim();
- if (result.equals(allResult.get(i))) {
- judge[i].setText("回答正确");
- judge[i].setForeground(Color.RED);
- score++;
- } else {
- judge[i].setText("回答错误");
- judge[i].setForeground(Color.GREEN);
- }
- }
- scoreField.setText(String.valueOf(score));
- }
- @Override
- public void keyPressed(KeyEvent e) {
- // TODO Auto-generated method stub
- if (e.getKeyCode() == KeyEvent.VK_ENTER) {
- userResults[textCount].requestFocus();
- if (textCount < 19) {
- textCount++;
- }
- }
- }
- @Override
- public void keyTyped(KeyEvent e) {
- // TODO Auto-generated method stub
- }
- @Override
- public void keyReleased(KeyEvent e) {
- // TODO Auto-generated method stub
- }
- }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/u012934723/article/details/54294713