java - 如何获取JTable中最后一个单元格的值？

Question

我有一个查询...代码运行良好，但无法获取最后一行和最后一列的最后一个单元格的值。下面是代码...请指导

使用此代码将行动态添加到 JTable : if(e.getSource()==addb) {

        model.addRow(new Object[3]);
        repaint();

    }

下面是从 JTable 逐行获取值的代码，稍后将把数据发送到数据库，而不是 System.out.println()...

if(e.getSource()==submit)
    {
        int j = table.getRowCount();
        for(int row=1;row<j;row++)
        {
            for(int column=0;column<3;column++)
            {
                System.out.println("row  "+row+"   Column is  "+column);                    
                System.out.println(model.getValueAt(row, column));
            }
        }

    }

Answer 1

类似这样的事情:

int i= table1.getRowCount()-1;
int j= table1.getColumnCount();
Object [] value = new Object[j];
for(int k = 0 ; k<j ; k++)
{
value[k] = model.getValueAt(i,k);
}   

另请参阅这个小示例

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class TableTest extends JFrame implements ActionListener{

    JTable table ;
    JButton button;
    public TableTest(){
        String []colNames = {"Subject","lecturer"}; 
        String [][] rowDatas = { {"Java Programming","Jon"},
                                 {"C++ Programming","Nuhara"},
                                 {"Mathematicz","Mike"},
                                 {"Database","Saran"}
                                };
        table = new JTable(rowDatas,colNames);

        button = new JButton("Show Last Record");
        button.addActionListener(this);

        this.add(table);
        this.add(button);
        this.setVisible(true);
        this.setSize(300,200);
        this.setDefaultCloseOperation(3);
        this.setLayout(new FlowLayout());
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        int i= table.getRowCount()-1;
        int j= table.getColumnCount();
        Object [] value = new Object[j];
        for(int k = 0 ; k<j ; k++)
        {
        //value[k] = table.getValueAt(i,k);
            System.out.println(table.getValueAt(i, k));
        }  
    }


    public static void main(String...ag){
        new TableTest();
    }
}