studentframe.java

学生考试系统 有学生和老师登录。 学生登录可以选择不同的题库进行考试或练习

package com.svse.view;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Rectangle;
import java.awt.Font;
import javax.swing.JTextArea;
import javax.swing.JToggleButton;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Toolkit;
import java.awt.Dimension;
import javax.swing.JOptionPane;
import java.awt.HeadlessException;
import javax.swing.ButtonGroup;
import com.svse.bean.QuestionBean;
import java.util.ArrayList;
import com.svse.bean.QuestionBean;

public class StudentFrame extends JFrame {
    TypeFrame typea;
    public StudentFrame() {
        try {
            jbInit();
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            //设置窗体的大小
            this.setSize(400, 499);
            //让窗体居中
            // Center the window
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            Dimension frameSize = this.getSize();
            if (frameSize.height > screenSize.height) {
                frameSize.height = screenSize.height;
            }
            if (frameSize.width > screenSize.width) {
                frameSize.width = screenSize.width;
            }
            this.setLocation((screenSize.width - frameSize.width) / 2,
                             (screenSize.height - frameSize.height) / 2);

            //设置可见度
            this.setVisible(true);
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    public StudentFrame(TypeFrame TypeFrame) {

        this();
        this.typea = TypeFrame;
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(null);
        lbl_topTitle.setFont(new java.awt.Font("宋体", Font.BOLD, 16));
        lbl_topTitle.setText("欢迎使用考试题库系统");
        lbl_topTitle.setBounds(new Rectangle(115, 19, 170, 27));
        lbl_title.setText("题干：");
        lbl_title.setBounds(new Rectangle(54, 86, 46, 21));
        txt_title.setEditable(false);
        txt_title.setLineWrap(true);
        txt_title.setBounds(new Rectangle(115, 64, 192, 65));
        rad_optionA.setText("选项A：");
        rad_optionA.setBounds(new Rectangle(28, 146, 79, 23));
        txt_optionA.setEditable(false);
        txt_optionA.setBounds(new Rectangle(115, 147, 192, 21));
        txt_optionB.setEditable(false);
        txt_optionB.setBounds(new Rectangle(115, 184, 192, 21));
        rad_optionB.setText("选项B：");
        rad_optionB.setBounds(new Rectangle(28, 183, 79, 23));
        txt_optionC.setEditable(false);
        txt_optionC.setBounds(new Rectangle(115, 223, 192, 21));
        rad_optionC.setText("选项C：");
        rad_optionC.setBounds(new Rectangle(28, 222, 79, 23));
        txt_optionD.setEditable(false);
        txt_optionD.setBounds(new Rectangle(115, 262, 192, 21));
        rad_optionD.setText("选项D：");
        rad_optionD.setBounds(new Rectangle(28, 261, 79, 23));
        btn_top.setBounds(new Rectangle(112, 301, 83, 25));
        btn_top.setText("上一题");
        btn_top.addActionListener(new StudentFrame_btn_top_actionAdapter(this));
        btn_next.setBounds(new Rectangle(215, 301, 83, 25));
        btn_next.setText("下一题");
        btn_next.addActionListener(new StudentFrame_btn_next_actionAdapter(this));
        btn_submit.setBounds(new Rectangle(112, 339, 83, 25));
        btn_submit.setText("交  卷");
        btn_submit.addActionListener(new StudentFrame_btn_submit_actionAdapter(this));
        btn_back.setBounds(new Rectangle(215, 339, 83, 25));
        btn_back.setText("返  回");
        btn_back.addActionListener(new StudentFrame_btn_back_actionAdapter(this));
        this.getContentPane().add(lbl_topTitle);
        this.getContentPane().add(txt_optionA);
        this.getContentPane().add(txt_title);
        this.getContentPane().add(txt_optionB);
        this.getContentPane().add(txt_optionC);
        this.getContentPane().add(txt_optionD);
        this.getContentPane().add(btn_top);
        this.getContentPane().add(btn_submit);
        this.getContentPane().add(btn_back);
        this.getContentPane().add(btn_next);
        this.getContentPane().add(rad_optionD);
        this.getContentPane().add(rad_optionA);
        this.getContentPane().add(rad_optionB);
        this.getContentPane().add(rad_optionC);
        this.getContentPane().add(lbl_title);
        ButtonGroup buttonGroup1 = new ButtonGroup();
        buttonGroup1.add(rad_optionA);
        buttonGroup1.add(rad_optionB);
        buttonGroup1.add(rad_optionC);
        buttonGroup1.add(rad_optionD);

    }

    JLabel lbl_topTitle = new JLabel();
    JLabel lbl_title = new JLabel();
    JTextArea txt_title = new JTextArea();
    JRadioButton rad_optionA = new JRadioButton();
    JTextField txt_optionA = new JTextField();
    JTextField txt_optionB = new JTextField();
    JRadioButton rad_optionB = new JRadioButton();
    JTextField txt_optionC = new JTextField();
    JRadioButton rad_optionC = new JRadioButton();
    JTextField txt_optionD = new JTextField();
    JRadioButton rad_optionD = new JRadioButton();
    JButton btn_top = new JButton();
    JButton btn_next = new JButton();
    JButton btn_submit = new JButton();
    JButton btn_back = new JButton();

    ArrayList<QuestionBean> list;
    int index = 0;
    int i = 0;

    //上一题
    public void btn_top_actionPerformed(ActionEvent actionEvent) {
        index--;
        if (index < 0) {
            index = 0;
            JOptionPane.showMessageDialog(this, "这是第一题！");
        }
        this.showInfo();
    }

    //下一题
    String answer;
    String values;
    public void btn_next_actionPerformed(ActionEvent actionEvent) {
        answer = list.get(index).getAnswer();
        values = (String) typea.cbo_answerWise.getSelectedItem();
        if (values.equals("考试")) {
            this.test();
            this.btn_top.setEnabled(false);
        } else {
            this.practice();
        }
        if (index > list.size() - 1) {
            index = list.size() - 1;
            this.btn_next.setEnabled(false);
            this.btn_top.setEnabled(false);
            JOptionPane.showMessageDialog(this, "已答题完毕！");
        }
        this.showInfo();
    }

    //判断用户输入的答案是否正确（考试）
    private void test() throws HeadlessException {
        if (this.rad_optionA.isSelected() ||
            this.rad_optionB.isSelected() ||
            this.rad_optionC.isSelected() ||
            this.rad_optionD.isSelected()) {

            if (this.rad_optionA.isSelected() && answer.equals("A")) {
                i++;
            } else if (this.rad_optionB.isSelected() && answer.equals("B")) {
                i++;
            } else if (this.rad_optionC.isSelected() && answer.equals("C")) {
                i++;
            } else if (this.rad_optionD.isSelected() && answer.equals("D")) {
                i++;
            }
            index++;
        } else {
            JOptionPane.showMessageDialog(this, "请选择！");
        }
    }

//判断用户选择的答案是否正确(练习)
    private void practice() throws HeadlessException {
        if (this.rad_optionA.isSelected() == false &&
            this.rad_optionB.isSelected() == false &&
            this.rad_optionC.isSelected() == false &&
            this.rad_optionD.isSelected() == false) {
            JOptionPane.showMessageDialog(this, "请选择！");
        } else {
            if (this.rad_optionA.isSelected() && answer.equals("A")) {
                index++;
            } else if (this.rad_optionB.isSelected() && answer.equals("B")) {
                index++;
            } else if (this.rad_optionC.isSelected() && answer.equals("C")) {
                index++;
            } else if (this.rad_optionD.isSelected() && answer.equals("D")) {
                index++;
            } else {
                JOptionPane.showMessageDialog(this, "你答错了！");
            }

        }
    }


//给文本框赋值
    public void showInfo() {
        this.txt_title.setText(list.get(index).getTitle());
        this.txt_optionA.setText(list.get(index).getOptionA());
        this.txt_optionB.setText(list.get(index).getOptionB());
        this.txt_optionC.setText(list.get(index).getOptionC());
        this.txt_optionD.setText(list.get(index).getOptionD());

    }

//交卷按钮
    public void btn_submit_actionPerformed(ActionEvent e) {
        JOptionPane.showMessageDialog(this, "您答对了" + i + "道题！");
    }

    //返回
    //返回按扭的单击事件
    public void btn_back_actionPerformed(ActionEvent e) {
        this.typea.setVisible(true);
        this.setVisible(false);
    }
}


class StudentFrame_btn_back_actionAdapter implements ActionListener {
    private StudentFrame adaptee;
    private ActionEvent e;
    StudentFrame_btn_back_actionAdapter(StudentFrame adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.btn_back_actionPerformed(e);
    }
}


class StudentFrame_btn_submit_actionAdapter implements ActionListener {
    private StudentFrame adaptee;
    private ActionEvent e;
    StudentFrame_btn_submit_actionAdapter(StudentFrame adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.btn_submit_actionPerformed(e);
    }
}


class StudentFrame_btn_next_actionAdapter implements ActionListener {
    private StudentFrame adaptee;
    private ActionEvent e;
    StudentFrame_btn_next_actionAdapter(StudentFrame adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.btn_next_actionPerformed(e);
    }
}


class StudentFrame_btn_top_actionAdapter implements ActionListener {
    private StudentFrame adaptee;
    private ActionEvent e;
    StudentFrame_btn_top_actionAdapter(StudentFrame adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.btn_top_actionPerformed(e);
    }
}