swing JTable学习(五)—中给table中的cell加tips 以及用AbstractTableModel创建表格

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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 stubTabelTest tabelTest = new TabelTest();tabelTest.show();}}
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