java swing table刷新_Java Swing – 如何更改从AbstractTableModel创建的自定义模型中的数据并刷新JTable…

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.table.AbstractTableModel;

public class Main extends JFrame {

public Main() {

final AbstractTableModel model = new MyModel();

final JTable table = new JTable(model);

getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);

model.setValueAt(new Integer(1), 0, 0);

JButton button = new JButton(“Increment selected cell”);

getContentPane().add(button, BorderLayout.SOUTH);

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

int row = table.getSelectedRow();

int column = table.convertColumnIndexToModel(table.getSelectedColumn());

int currentValue = ((Integer) model.getValueAt(row, column)).intValue();

model.setValueAt(new Integer(currentValue + 1), row, column);

}

});

pack();

}

public static void main(String arg[]) {

Main ex2 = new Main();

ex2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

ex2.setVisible(true);

}

}

class MyModel extends AbstractTableModel {

private int[][] table = { new int[3], new int[3], new int[3] };

public MyModel() {

for (int i = 0; i < 3; i++) {

for (int j = 0; j < 3; j++) {

table[i][j] = i * j;

}

}

}

public int getColumnCount() {

return table.length;

}

public int getRowCount() {

return table[0].length;

}

public Object getValueAt(int r, int c) {

return new Integer(table[r][c]);

}

public void setValueAt(Object obj, int r, int c) {

table[r][c] = ((Integer) obj).intValue();

fireTableCellUpdated(r, c);

}

}