代码，

import java.awt.Container;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;

public class Mylmlk
{
	public static void main(String[] agrs)
	{
		JFrame frame=new JFrame("学生成绩表");
		frame.setSize(500,200);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container contentPane=frame.getContentPane();
		
		String[] columnNames = {"id","姓名","性别","年龄","成绩"};
		Object[][] data1 = {
			{1, "吴一", "男", 20, 65},
			{2, "李三", "女", 21, 75},
			{3, "王四", "男", 20, 85},
			{4, "刘七七", "女", 22, 65},
			{5, "张一三", "男", 21, 95} };
		
		JTable table=new JTable(data1,columnNames);
		contentPane.add(new JScrollPane(table));
		frame.setVisible(true);
	}
}