程序实例
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class studentManager {
private int rows = 5;
private String[][] unit = new String[rows][5];
private String[] name = {"姓名","语文","数学","外语","总分"};
studentManager(){
JFrame frame = new JFrame("模拟学生管理系统");
final JTable[] table = {new JTable(unit, name)};
JPanel southPanel = new JPanel();
southPanel.add(new JLabel("添加学生数"));
JButton calc = new JButton("计算成绩");
JButton save = new JButton("保存学生信息");
JTextField input = new JTextField(5);
southPanel.add(input);
southPanel.add(calc);
southPanel.add(save);
frame.add(new JLabel("欢迎访问学生管理系统"),BorderLayout.NORTH);
frame.add(southPanel, BorderLayout.SOUTH);
frame.add(new JScrollPane(table[0]),BorderLayout.CENTER);

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