java Table 问题

Question

我想要按一个按键就将jtable里的值全部储存到linkedList或者ArrayList，应该怎样做？？

最好写个java程式出来，比较容易明白。。。

Answer 1

首先让JTable实现KeyListener,我在这里当按下S的时候就会保存到List中去
关键代码是实现的keyPressed方法，楼主好好看看，还有Random是生成随机数的类，可以不必去管它，只是为了生成数据而已

import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.LinkedList;
import java.util.Random;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;

public class Table extends JFrame implements KeyListener {

private static final long serialVersionUID = 1L;
private JTable table;
private DefaultTableModel model;
private Random rand;
private JScrollPane pane;
private LinkedList<Integer> list;

public Table() {
rand = new Random();
list = new LinkedList<Integer>();
String[] name = { "第一列" };
Integer[][] data = { { rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) },
{ rand.nextInt(50) }, { rand.nextInt(50) } };
model = new DefaultTableModel(data, name);
table = new JTable(model);
table.addKeyListener(this);
pane = new JScrollPane(table);
getContentPane().add(pane);
setLayout(new GridLayout(1, 1));
setBounds(100, 100, 200, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public static void main(String[] args) {
Table t = new Table();
t.setVisible(true);
}

@Override
public void keyPressed(KeyEvent arg0) {
if (arg0.getKeyCode() == KeyEvent.VK_S) {
int row = model.getRowCount();//返回总行数
System.out.println(row);
for (int i = 0; i < row; i++) {
list.add(i, (Integer)(table.getValueAt(i, 0)));
}
JOptionPane.showMessageDialog(this, "成功保存到LinkedList中！\n保存数据为：\n" +""+list);
}
}
@Override
public void keyReleased(KeyEvent arg0) {

}

@Override
public void keyTyped(KeyEvent arg0) {

}

}

Answer 2

jtable可以getValueAt(row, col),listedlist可以add(e),从表格取值，添加进list就都可以完成了。然后就要看你具体怎么想的了，因为表格是二维的，而列表是一维的。。

Answer 3

JTable不是有个getValueAt(int row, int column)方法啊~~
你遍历取出,再转存到其他容器里就是了~~~

Answer 4

用一个循环来做