用Java设计一个完整的UI功能操作界面,通过界面输入功能输入n条学生的成绩,每条记录由学号、姓名和分数组成,然后编写事件处理程序完成下列操作:查询功能:实现学生成绩查询功能;修改功能:实现学生成绩修改功能;删除功能:实现学生成绩删除功能;退出功能等
时间: 2024-12-19 10:16:32 浏览: 5
在Java中设计一个简单的UI操作界面,可以使用Swing或JavaFX库来创建窗口和组件。以下是步骤:
1. 导入必要的库:
```java
import javax.swing.*;
import java.awt.*;
```
2. 创建一个JFrame作为主窗口:
```java
public class StudentScoreManager extends JFrame {
private JPanel mainPanel;
private JTextField studentIDField;
private JTextField nameField;
private JTextField scoreField;
private JButton queryButton, modifyButton, deleteButton, exitButton;
public StudentScoreManager() {
// 初始化窗口属性
setTitle("学生成绩管理系统");
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
createComponents();
}
private void createComponents() {
mainPanel = new JPanel(new GridLayout(5, 2));
// 添加字段
JLabel idLabel = new JLabel("学号:");
JLabel nameLabel = new JLabel("姓名:");
JLabel scoreLabel = new JLabel("分数:");
studentIDField = new JTextField();
nameField = new JTextField();
scoreField = new JTextField();
// 添加按钮并设置事件监听
queryButton = new JButton("查询");
queryButton.addActionListener(e -> performQuery());
modifyButton = new JButton("修改");
modifyButton.addActionListener(e -> performModify());
deleteButton = new JButton("删除");
deleteButton.addActionListener(e -> performDelete());
exitButton = new JButton("退出");
exitButton.addActionListener(e -> dispose());
mainPanel.add(idLabel);
mainPanel.add(studentIDField);
mainPanel.add(nameLabel);
mainPanel.add(nameField);
mainPanel.add(scoreLabel);
mainPanel.add(scoreField);
mainPanel.add(queryButton, BorderLayout.LINE_END);
mainPanel.add(modifyButton, BorderLayout.LINE_END);
mainPanel.add(deleteButton, BorderLayout.LINE_END);
mainPanel.add(exitButton, BorderLayout.LINE_END);
setContentPane(mainPanel);
}
// 模拟查询、修改和删除方法,这里仅展示伪代码
private void performQuery() {
System.out.println("查询学号:" + studentIDField.getText());
}
private void performModify() {
System.out.println("尝试修改学号:" + studentIDField.getText());
}
private void performDelete() {
System.out.println("删除学号:" + studentIDField.getText());
}
// 其他必要的窗口显示和事件处理代码...
}
```
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