展开全部

你没有给table赋值。

代码如下即可

package student.UI;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import javax.swing.DefaultCellEditor;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.JTextField;

import javax.swing.table.AbstractTableModel;

import javax.swing.table.TableColumnModel;

import javax.swing.table.TableModel;

public class searchSCR extends JFrame {

/**

* @param args

*/

public static void main(String[] args) {

searchSCR ss = new searchSCR();

String[] titles = {"姓名","年龄32313133353236313431303231363533e59b9ee7ad9431333332623933","性别","数学成绩","英语成绩","总分","是否及格"} ;

Object [][] userInfo = {

{"李兴华",30,"男",89,97,186,true} ,

{"李康",23,"女",90,93,183,false}

} ; // 定义数据

ss.showUI(titles,userInfo);

}

public void showUI(String[] titles,Object [][] userInfo) {

this.setTitle("查找学生信息");

this.setSize(500,300);

this.setLocationRelativeTo(null);

this.setLayout(new BorderLayout());

this.setBackground(Color.red);

JPanel upPane = new JPanel();

JPanel downPane = new JPanel();

Dimension dim = new Dimension(150, 150);

upPane.setPreferredSize(dim);

downPane.setPreferredSize(dim);

this.add(upPane, BorderLayout.CENTER);

this.add(downPane, BorderLayout.SOUTH);

JLabel stuNum = new JLabel("请输入要查询成绩的课程名称:");

final JTextField jtf1 = new JTextField(15);

JButton submit = new JButton("确认") ;

JTable table = new JTable(userInfo,titles) ; // 建立表格

JScrollPane scr = new JScrollPane(table) ;

upPane.add(stuNum,0);

upPane.add(jtf1,1);

upPane.add(submit);

downPane.add(table);

downPane.add(scr) ;

this.setDefaultCloseOperation(3);

this.setVisible(true);

}

}