为什么eclipse 里面显示不了表格 求大神解答谢谢了
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Example10_16 {
public static void main(String args[]){
Win win=new Win();
}
}
class Win extends JFrame implements ActionListener{
JTable table;
Object a[][];
Object name[]={"商品名称","单价","销售量","销售额"};
JButton computerRows,computerColums;
JTextField inputRowsNumber;//创建一个文本框
int initRows=1;
JPanel pSouth,pNorth;
JScrollPane js;
int count=0,rowsNumber=0;
Win(){
computerRows=new JButton("每件商品销售额");
computerColums=new JButton("总销售额");
inputRowsNumber=new JTextField(10);
computerRows.addActionListener(this);
computerColums.addActionListener(this);
pSouth=new JPanel();
pNorth=new JPanel();//默认为FlowLayout布局
pNorth.add(new JLabel("输入表格行数，回车确认"));
pNorth.add(inputRowsNumber);
pSouth.add(computerRows);
pSouth.add(computerColums);
js=new JScrollPane(table);
add(pSouth,BorderLayout.SOUTH);
add(pNorth,BorderLayout.NORTH);
add(js,BorderLayout.CENTER);
setBounds(100,100,370,250);
setVisible(true);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}
public void actionPerformed(ActionEvent e){
if(e.getSource()==inputRowsNumber){
count=0;
initRows=Integer.parseInt(inputRowsNumber.getText());
a=new Object[initRows][4];
for(int i=0;i |
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