http://www.csdn.net/expert/topicview1.asp
解决方案 »
- 关于单例模式的一点疑问
- 基础知识的(1)
- this
- 做了个窗口,想在里面添加背景音乐,请问怎么做?
- java.lang.NullPointerException 问题 帮忙看看
- Thread.sleep 会让 synchronized 放弃得到的锁吗?
- 高手进,线程问题
- 我来若若的问一下怎么给JFrame标题栏添加按钮?(不去掉标题栏修饰)
- tomcat
- 急,急,急,帮个忙,请问超连接本页,如何取得表单的值?????
- TCP和UDP到底有什么不同啊,什么时候用tcp什么时候用udp呢,为什么icq之类的东西都用udp来实现呢!!!!100分奉上!!!
- class文件应该考到Tomcat下哪个文件夹下
import javax.swing.table.AbstractTableModel;import javax.swing.DefaultCellEditor;import javax.swing.JScrollPane;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import java.awt.*;
import java.awt.event.*;/**
* This is exactly like TableDemo, except that it uses a
* custom cell editor to validate integer input.
*/
public class TableEditDemo extends JFrame {
private boolean DEBUG = true; public TableEditDemo() {
super("TableEditDemo"); MyTableModel myModel = new MyTableModel();
JTable table = new JTable(myModel);
table.setPreferredScrollableViewportSize(new Dimension(500, 70)); //Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table); //Set up real input validation for the integer column.
setUpIntegerEditor(table); //Add the scroll pane to this window.
getContentPane().add(scrollPane, BorderLayout.CENTER); addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
} private void setUpIntegerEditor(JTable table) {
//Set up the editor for the integer cells.
final WholeNumberField integerField = new WholeNumberField(0, 5);
integerField.setHorizontalAlignment(WholeNumberField.RIGHT); DefaultCellEditor integerEditor =
new DefaultCellEditor(integerField) {
//Override DefaultCellEditor's getCellEditorValue method
//to return an Integer, not a String:
public Object getCellEditorValue() {
return new Integer(integerField.getValue());
}
};
table.setDefaultEditor(Integer.class, integerEditor);
} 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)},
{"Mark", "Andrews",
"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;
}
} public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
} data[row][col] = value;
fireTableCellUpdated(row, col); if (DEBUG) {
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("--------------------------");
}
} public static void main(String[] args) {
TableEditDemo frame = new TableEditDemo();
frame.pack();
frame.setVisible(true);
}
}