Java实验05_GUI

Java实验05_GUI

实验05(01)计算员工工资

1.   (0分)

设计Manager类、GUI类及事件处理
题目描述
(1)设计一个Manager类并编写代
  码， Manager类的属性有姓名，
  工号，基本工资，小时工资(元/小时）。自定义方法：至少包括计算月工资的方法：calSalary()。
(2)编写一个GUI类，输入manager的姓名、工号，基本工资，月工作时间（小时），创建对象，调用calSalary()方法计算出该manager的月工资，并显示在用户界面上。
 */

package test01_manager;

import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class ManageDemo {
    
    

    public static void main(String[] args) {
    
    
        // TODO Auto-generated method stub
        new ManagerGUI();
    }

}

class Manager {
    
    
    private String name;
    private String ID;
    private double hourNum;
    private double basicPrice;
    private double hourPrice;

    public Manager(String name, String ID, double hourNum, double basicPrice, double hourPrice) {
    
    
        this.name = name;
        this.ID = ID;
        this.hourNum = hourNum;
        this.basicPrice = basicPrice;
        this.hourPrice = hourPrice;
    }

    public double calSalary() {
    
    
        return basicPrice + hourPrice * hourNum;
    }
}

class ManagerGUI extends JFrame implements ActionListener {
    
    
    // 定义组件
    JLabel nameLabel, IDLabel, hourNumLabel, basicPriceLabel, hourPriceLabel, priceLabel;
    JTextField nameTextField, IDTextField, hourNumTextField, basicPriceTextField, hourPriceTextField, priceTextField;
    JPanel namePanel, IDPanel, hourNumPanel, basicPricePanel, hourPricePanel, pricePanel;
    JButton calSalaryButton;

    public ManagerGUI() {
    
    
        nameLabel = new JLabel("姓名");
        IDLabel = new JLabel("工号");
        hourNumLabel = new JLabel("小时数");
        basicPriceLabel = new JLabel("基本工资");
        hourPriceLabel = new JLabel("小时工资");
        priceLabel = new JLabel("总工资");

        nameTextField = new JTextField(10);
        IDTextField = new JTextField(10);
        hourNumTextField = new JTextField(10);
        basicPriceTextField = new JTextField(10);
        hourPriceTextField = new JTextField(10);
        priceTextField = new JTextField(10);

        namePanel = new JPanel();
        IDPanel = new JPanel();
        hourNumPanel = new JPanel();
        basicPricePanel = new JPanel();
        hourPricePanel = new JPanel();
        pricePanel = new JPanel();

        calSalaryButton = new JButton("计算");

        // 添加绑定
        calSalaryButton.addActionListener(this);
        namePanel.add(nameLabel);
        namePanel.add(nameTextField);
        IDPanel.add(IDLabel);
        IDPanel.add(IDTextField);
        hourNumPanel.add(hourNumLabel);
        hourNumPanel.add(hourNumTextField);
        basicPricePanel.add(basicPriceLabel);
        basicPricePanel.add(basicPriceTextField);
        hourPricePanel.add(hourPriceLabel);
        hourPricePanel.add(hourPriceTextField);
        pricePanel.add(priceLabel);
        pricePanel.add(priceTextField);

        this.setLayout(new GridLayout(7, 1, 5, 5));

        this.add(namePanel);
        this.add(IDPanel);
        this.add(hourNumPanel);
        this.add(basicPricePanel);
        this.add(hourPricePanel);
        this.add(calSalaryButton);
        this.add(pricePanel);

        this.setTitle("Manager");
        this.setSize(300, 250);

        // 设置窗体关闭时候，保证JVM要退出就是控制台
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 获取你的屏幕的宽和高
        int width = Toolkit.getDefaultToolkit().getScreenSize().width;
        int height = Toolkit.getDefaultToolkit().getScreenSize().height;
        // 然后设置你编写的窗口的初始位置，也就是在中间，
        this.setLocation(width / 2 - 200, height / 2 - 150);

        // 显示
        this.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
    
    
        // TODO Auto-generated method stub
        if (e.getSource() == calSalaryButton) {
    
    

            String name = nameTextField.getText();
            String ID = IDTextField.getText();
            double hourNum = Double.parseDouble(hourNumTextField.getText());
            double basicPrice = Double.parseDouble(basicPriceTextField.getText());
            double hourPrice = Double.parseDouble(hourPriceTextField.getText());
            Manager manager = new Manager(name, ID, hourNum, basicPrice, hourPrice);
            double price = manager.calSalary();
            priceTextField.setText(String.valueOf(price));

        }
    }
}

实验05(02)简单计算器

一.界面显示

二.代码

2.1.CalculatorDemo.java

/*
 * 功能：实现个性化计算器
 * 用户界面类与问题域类交互
 */

package test16_Calculator;

import java.awt.event.*;
import javax.swing.*;

import java.awt.*;

//测试类
public class CalculatorDemo {
    
    
    public static void main(String[] args) {
    
    
        Calculator calculator = new Calculator();
    }
}

class Calculator extends JFrame implements ActionListener {
    
    
    int buttonSize = 20;
    // 等号标识
    private boolean isEqual;
    String[] buttonNameArray = {
    
     "7", "8", "9", "/", "4", "5", "6", "*", "1", "2", "3", "-", "0", ".", "C", "+", "圆的面积",
            "test", "test", "=" };
    // 运算类对象
    Operation op;
    // 保存运算符
    String operator = "";
    private JButton[] buttonArray = new JButton[buttonSize];
    private JTextField displayField;
    private JPanel panel;

    public Calculator() {
    
    
        isEqual = true;
        // 创建组件
        for (int i = 0; i < buttonArray.length; i++) {
    
    
            buttonArray[i] = new JButton(buttonNameArray[i]);
        }
        displayField = new JTextField();
        panel = new JPanel();

        // 字体
        Font font = new Font("宋体", Font.BOLD, 16);
        Font font1 = new Font("宋体", Font.BOLD, 20);
        for (int i = 0; i < buttonArray.length; i++) {
    
    
            buttonArray[i].setFont(font);
        }
        displayField.setFont(font1);

        // 文本框居左
        displayField.setHorizontalAlignment(JTextField.RIGHT);
        // 初始值
        displayField.setText("0");
        // 设置前景
        displayField.setForeground(Color.BLACK);
        // 设置边框
        displayField.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createLineBorder(Color.black),
                BorderFactory.createEmptyBorder(5, 5, 5, 5)));

        panel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createLineBorder(Color.black),
                BorderFactory.createEmptyBorder(10, 10, 10, 10)));

        // 设置布局
        panel.setLayout(new GridLayout(5, 4, 10, 10));

        // 添加组件
        this.add(displayField, BorderLayout.NORTH);
        for (int i = 0; i < buttonArray.length; i++) {
    
    
            panel.add(buttonArray[i]);
        }
        this.add(panel, BorderLayout.CENTER);

        // 设置监听
        for (int i = 0; i < buttonArray.length; i++) {
    
    
            buttonArray[i].addActionListener(this);
        }

        // 设置窗口
        // 设置窗口
        this.setTitle("计算器");
        // 窗口大小
        this.setSize(500, 350);

        // 设置窗体关闭时候，保证JVM要退出就是控制台
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 获取你的屏幕的宽和高
        int width = Toolkit.getDefaultToolkit().getScreenSize().width;
        int height = Toolkit.getDefaultToolkit().getScreenSize().height;
        // 然后设置你编写的窗口的初始位置，也就是在中间，
        this.setLocation(width / 2 - 200, height / 2 - 150);

        // 显示
        this.setVisible(true);

    }

    // 是否是双目运算符还是单目
    private int judgeOperation(String s) {
    
    
        // 记录运算符的数量
        int operatorNum = 0;
        if ("+-*/".indexOf(s) != -1) {
    
    
            operatorNum = 2;
        } else {
    
    
            if ("圆的面积".indexOf(s) != -1) {
    
    
                operatorNum = 1;
            } else {
    
    
                operatorNum = 0;
            }
        }
        return operatorNum;
    }

    @Override // 重写的意思

    public void actionPerformed(ActionEvent e) {
    
    
        // 读取文本
        String s = e.getActionCommand();
        // 这里是等于-1!
        if ("1234567890.=".indexOf(s) == -1) {
    
    
            operator = s;
        }
        if ("C".indexOf(s) == -1) {
    
    
            operator = "";
        }
        // 是数字还是小数点，不是等号
        if (judgeOperation(s) == 0 && !s.equals("=")) {
    
    
            if (isEqual) {
    
    
                displayField.setText(s);
            } else {
    
    
                // 每按一次出现一次，拼接操作符
                displayField.setText(displayField.getText() + s);
            }
            // 标志变量
            isEqual = false;
        } else {
    
    
            // 分单目还是双目
            // 是运算符按钮
            if (judgeOperation(s) != 0) {
    
    
                op = OperationFactory.createOperate(s);
                op.setNum1(Double.parseDouble(displayField.getText()));
                displayField.setText("");
            } else {
    
    
                // 如果是等号=,且前面的运算符是双目运算符
                if (judgeOperation(operator) == 2 && s.equals("=")) {
    
    
                    op.setNum2(Double.parseDouble(displayField.getText()));
                    // 对除法的进行判断
                    if (op.getNum2() == 0 && operator.equals("/")) {
    
    
                        JOptionPane.showMessageDialog(null, "除数不能为0", "提示", 3);
                        displayField.setText("");
                    } else {
    
    
                        double result = op.getResult();
                        displayField.setText(Double.toString(result));
                        isEqual = true;
                    }
                } else if (s.equals("=") && judgeOperation(operator) == 1) {
    
    
                    double result = op.getResult();
                    displayField.setText(Double.toString(result));
                    isEqual = true;

                }
            }
        }
    }
}

2.2.OperationFactory.java

/*
 * 功能：运算工厂类，实例化运算类
 */
package test16_Calculator;

public class OperationFactory {
    
    

    public static Operation createOperate(String operate) {
    
    
        Operation op = null;
        switch (operate) {
    
    
        // charAt取第一个字符
        case "+": {
    
    
            op = new OperationAdd();
            break;
        }
        case "-": {
    
    
            op = new OperationSub();
            break;
        }
        case "*": {
    
    
            op = new OperationMul();
            break;
        }
        case "/": {
    
    
            op = new OperationDiv();
            break;
        }
        case "圆的面积": {
    
    
            op = new OperationCircle();
            break;
        }
        default:
            break;
        }
        return op;
    }
}

2.3.Operation.java

/*
 * 功能:运算类
 */
package test16_Calculator;

public class Operation {
    
    
    private double num1;
    private double num2;

    public double getResult() {
    
    
        return 0;
    }

    public double getNum1() {
    
    
        return num1;
    }

    public void setNum1(double num1) {
    
    
        this.num1 = num1;
    }

    public double getNum2() {
    
    
        return num2;
    }

    public void setNum2(double num2) {
    
    
        this.num2 = num2;
    }

}

// 加法类
class OperationAdd extends Operation {
    
    
    public double getResult() {
    
    
        return getNum1() + getNum2();
    }
}

// 减法类
class OperationSub extends Operation {
    
    
    public double getResult() {
    
    
        return getNum1() - getNum2();
    }
}

// 乘法类
class OperationMul extends Operation {
    
    
    public double getResult() {
    
    
        return getNum1() * getNum2();
    }
}

// 除法类
class OperationDiv extends Operation {
    
    
    public double getResult() {
    
    
        return getNum1() / getNum2();
    }
}

// 圆的面积
class OperationCircle extends Operation {
    
    
    public double getResult() {
    
    
        return getNum1() * getNum1() * Math.PI;
    }
}

实验05(03)登录触发

一.界面

二.代码

/**
 * @Description
 * @auther lim
 * @create 2020-03-28 21:08
 */

package test08_Login;

import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

//快速引包，快捷键是ctrl+shift+O

public class Main {
    
    
    public static void main(String[] args) {
    
    
        LoginGUI loginGUI = new LoginGUI();
    }
}

class LoginGUI extends JFrame implements ActionListener {
    
    
    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    // 定义组件
    JLabel jlabel1, jlabel2;
    // 用户名
    JTextField usernameText;
    // 密码
    JPasswordField passwordText;
    // 按钮
    JButton loginButton, cancelButton;

    JPanel jpanel1, jpanel2, jpanel3;

    public LoginGUI() {
    
    
        // 创建组件
        jpanel1 = new JPanel();
        jpanel2 = new JPanel();
        jpanel3 = new JPanel();
        jlabel1 = new JLabel("用户名");
        jlabel2 = new JLabel("密  码");

        // 控制宽度，美观
        usernameText = new JTextField(10);
        passwordText = new JPasswordField(10);

        loginButton = new JButton("登录");
        cancelButton = new JButton("取消");

        // 设置字体
        // 字号是18
        Font font = new Font("楷体", Font.BOLD, 18);
        jlabel1.setFont(font);
        jlabel2.setFont(font);
        // usernameText.setFont(font);
        // passwordText.setFont(font);
        loginButton.setFont(font);
        cancelButton.setFont(font);

        // 设置前景色
        Color color = new Color(0, 0, 255);
        jlabel1.setForeground(color);
        jlabel2.setForeground(color);
        // usernameText.setForeground(color);
        // passwordText.setForeground(color);
        loginButton.setForeground(color);
        cancelButton.setForeground(color);

        // 设置布局
        this.setLayout(new GridLayout(3, 1, 5, 5));
        jpanel1.add(jlabel1);
        jpanel1.add(usernameText);

        jpanel2.add(jlabel2);
        jpanel2.add(passwordText);

        jpanel3.add(loginButton);
        jpanel3.add(cancelButton);

        this.add(jpanel1);
        this.add(jpanel2);
        this.add(jpanel3);

        // 设置监听（绑定）
        loginButton.addActionListener(this);
        cancelButton.addActionListener(this);

        // 设置图标
        // 默认的路径在src前面！
        ImageIcon icon = new ImageIcon("./src/test08_Login/qq.png");
        this.setIconImage(icon.getImage());

        // 设置窗口
        this.setTitle("用户登录");
        // 窗口大小
        this.setSize(300, 180);

        // 设置窗体关闭时候，保证JVM要退出就是控制台
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 获取你的屏幕的宽和高
        int width = Toolkit.getDefaultToolkit().getScreenSize().width;
        int height = Toolkit.getDefaultToolkit().getScreenSize().height;
        // 然后设置你编写的窗口的初始位置，也就是在中间，
        this.setLocation(width / 2 - 200, height / 2 - 150);

        // 显示
        this.setVisible(true);
    }

    // 实现抽象方法
    // 单击时候就调用这个
    @Override
    public void actionPerformed(ActionEvent e) {
    
    
        // 检查啥按钮被按下
        if (e.getSource() == loginButton) {
    
    
            if (checkPassword() == true) {
    
    
                // 显示弹出窗体
                // 后面的提示是标题栏
                JOptionPane.showMessageDialog(null, "用户名和密码正确，欢迎登录！", "提示", 1);

            } else {
    
    
                JOptionPane.showMessageDialog(null, "用户名或密码错误，请重新登录！", "提示", 2);
            }
        } else {
    
    
            if (e.getActionCommand() == "取消") {
    
    
                clearText();
            }
        }

    }

    public boolean checkPassword() {
    
    
        String userName = "dxxy";
        String password = "admin";
        // trim()去掉前后多余的空格
        String inputUserName = usernameText.getText().trim();
        // String inputPassword = passwordText.getText().trim();
        // 密码框是错误的
        // 先转化再去空格！
        String inputPassword = String.valueOf(passwordText.getPassword()).trim();
        if (userName.equals(inputUserName) && password.equals(inputPassword)) {
    
    
            return true;
        } else {
    
    
            return false;
        }

    }

    // 取消时候清空文本框
    public void clearText() {
    
    
        usernameText.setText("");
        passwordText.setText("");
    }

}