看一看这个例子吧(From sun.java.com)import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*;public class TableTest extends JFrame{ public TableTest(){ setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); String[] columnNames={"First Name","Last Name","sport","# of Years","Vegetarian"}; Object[][] data={ {"Mary","Campione","Snowboarding", new Integer(5),new Boolean(false)}, {"Alison", "Huml","Rowing", new Integer(3), new Boolean(true)}, {"Kathy", "Walrath","Chasing toddlers", new Integer(2), new Boolean(false)}, {"Sharon", "Zakhour","Speed reading", new Integer(20), new Boolean(true)}, {"Angela", "Lih","Teaching high school", new Integer(4), new Boolean(false)} }; final JTable table=new JTable(data,columnNames); table.setPreferredScrollableViewportSize(new Dimension(500,300));
table.setModel(new MyTableModel()); //Selection Model table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); ListSelectionModel rowModel=table.getSelectionModel(); rowModel.addListSelectionListener(new ListSelectionListener(){ public void valueChanged(ListSelectionEvent e){ if (e.getValueIsAdjusting()) return; ListSelectionModel model=(ListSelectionModel)e.getSource(); if (model.isSelectionEmpty()) System.out.println("select no row!"); else{ int row=model.getMinSelectionIndex(); System.out.println("row "+row+" is selected");
} } }); } // inner class
class MyTableModel extends AbstractTableModel { final String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; final Object[][] data = { {"Mary", "Campione", "Snowboarding", new Integer(5), new Boolean(false)}, {"Alison", "Huml", "Rowing", new Integer(3), new Boolean(true)}, {"Kathy", "Walrath", "Chasing toddlers", new Integer(2), new Boolean(false)}, {"Sharon", "Zakhour", "Speed reading", new Integer(20), new Boolean(true)}, {"Angela", "Lih", "Teaching high school", new Integer(4), new Boolean(false)} }; public int getColumnCount() { return columnNames.length; } public int getRowCount() { return data.length; } public String getColumnName(int col) { return columnNames[col]; } public Object getValueAt(int row, int col) { return data[row][col]; } /* * JTable uses this method to determine the default renderer/ * editor for each cell. If we didn't implement this method, * then the last column would contain text ("true"/"false"), * rather than a check box. */ public Class getColumnClass(int c) { return getValueAt(0, c).getClass(); } /* * Don't need to implement this method unless your table's * editable. */ public boolean isCellEditable(int row, int col) { //Note that the data/cell address is constant, //no matter where the cell appears onscreen. if (col < 2) { return false; } else { return true; } } /* * Don't need to implement this method unless your table's * data can change. */ public void setValueAt(Object value, int row, int col) { System.out.println("Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")"); if (data[0][col] instanceof Integer && !(value instanceof Integer)) { try { data[row][col] = new Integer(value.toString()); fireTableCellUpdated(row, col); } catch (NumberFormatException e) { JOptionPane.showMessageDialog(TableTest.this, "The \"" + getColumnName(col) + "\" column accepts only integer values."); } } else { data[row][col] = value; fireTableCellUpdated(row, col); } System.out.println("New value of data:"); printDebugData(); } private void printDebugData() { int numRows = getRowCount(); int numCols = getColumnCount(); for (int i=0; i < numRows; i++) { System.out.print(" row " + i + ":"); for (int j=0; j < numCols; j++) { System.out.print(" " + data[i][j]); } System.out.println(); } System.out.println("--------------------------"); } } //inner class end public static void main(String[] args){ TableTest test=new TableTest(); test.setLocation(20,150); test.pack(); test.setVisible(true); } }
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;public class TableTest extends JFrame{
public TableTest(){
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
String[] columnNames={"First Name","Last Name","sport","# of Years","Vegetarian"};
Object[][] data={
{"Mary","Campione","Snowboarding", new Integer(5),new Boolean(false)},
{"Alison", "Huml","Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath","Chasing toddlers", new Integer(2), new Boolean(false)},
{"Sharon", "Zakhour","Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih","Teaching high school", new Integer(4), new Boolean(false)}
};
final JTable table=new JTable(data,columnNames);
table.setPreferredScrollableViewportSize(new Dimension(500,300));
JScrollPane scrollpane=new JScrollPane(table);
getContentPane().add(scrollpane,BorderLayout.CENTER);
table.setModel(new MyTableModel());
//Selection Model
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowModel=table.getSelectionModel();
rowModel.addListSelectionListener(new ListSelectionListener(){
public void valueChanged(ListSelectionEvent e){
if (e.getValueIsAdjusting()) return;
ListSelectionModel model=(ListSelectionModel)e.getSource();
if (model.isSelectionEmpty())
System.out.println("select no row!");
else{
int row=model.getMinSelectionIndex();
System.out.println("row "+row+" is selected");
}
}
});
}
// inner class
class MyTableModel extends AbstractTableModel {
final String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};
final Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Sharon", "Zakhour",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
}; public int getColumnCount() {
return columnNames.length;
} public int getRowCount() {
return data.length;
} public String getColumnName(int col) {
return columnNames[col];
} public Object getValueAt(int row, int col) {
return data[row][col];
} /*
* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
*/
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
} /*
* Don't need to implement this method unless your table's
* editable.
*/
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col < 2) {
return false;
} else {
return true;
}
} /*
* Don't need to implement this method unless your table's
* data can change.
*/
public void setValueAt(Object value, int row, int col) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")"); if (data[0][col] instanceof Integer
&& !(value instanceof Integer)) {
try {
data[row][col] = new Integer(value.toString());
fireTableCellUpdated(row, col);
} catch (NumberFormatException e) {
JOptionPane.showMessageDialog(TableTest.this,
"The \"" + getColumnName(col)
+ "\" column accepts only integer values.");
}
} else {
data[row][col] = value;
fireTableCellUpdated(row, col);
} System.out.println("New value of data:");
printDebugData();
} private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount(); for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
} //inner class end
public static void main(String[] args){
TableTest test=new TableTest();
test.setLocation(20,150);
test.pack();
test.setVisible(true);
}
}
不过如果用paramSetTable.setSelectionMode(
ListSelectionModel.SINGLE_SELECTION);
来设置单选的话,又不能保存编辑值了