java中tablemodel_java中给table中的cell加tips 以及用AbstractTableModel创建表格

package tableTest;

import java.awt.Point;

import java.awt.event.MouseEvent;

import java.awt.event.MouseMotionListener;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.table.AbstractTableModel;

import javax.swing.table.TableModel;

public class TabelTest {

JFrame jFrame = new JFrame();

private JScrollPane jScrollPane;

public void show() {

jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jFrame.setSize(300, 128);

final Object jtText[][] = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 },

{ 9, 10, 11, 12 }, { 13, 14, 15, 16 }, { 17, 18, 19, 20 } };

final String jtHead[] = { “Column1”, “Column2”, “Column3”, “Column4” };

TableModel dataModel = new AbstractTableModel() {

private static final long serialVersionUID = 0L;

public int getColumnCount() {

return jtHead.length;

}

public int getRowCount() {

return jtText.length;

}

public Object getValueAt(int rowIndex, int columnIndex) {

return jtText[rowIndex][columnIndex];

}

public String getColumnName(int column) {

return jtHead[column];

}

public boolean isCellEditable(int row, int col) {

return false;

}

public void setValueAt(Object aValue, int row, int column) {

jtText[row][column] = aValue;

}

};

final JTable jTable = new JTable(dataModel);

jScrollPane = new JScrollPane(jTable);

jScrollPane.setBounds(10, 40, 280, 90);

jFrame.add(jScrollPane);

jFrame.setVisible(true);

jTable.addMouseMotionListener(new MouseMotionListener() {

@Override

public void mouseDragged(MouseEvent e) {

}

public void mouseMoved(MouseEvent e) {

Point point = e.getPoint();

int x = jTable.rowAtPoint(point);

int y = jTable.columnAtPoint(point);

System.out.println(“x:”+x);

System.out.println(“y:”+y);

//if (x != row || y != column) {

//row = x;

//column = y;

//}

Object tip = jTable.getValueAt(x, y);

if (tip != null) {

jTable.setToolTipText(tip.toString());

}

}

});

}

public static void main(String[] args) {

// TODO Auto-generated method stub

TabelTest tabelTest = new TabelTest();

tabelTest.show();

}

}