如何在 Java 中检测 JTable 行的双击事件?
awtjavaobject oriented programmingprogrammingswing
JTable 是 JComponent 的子类，用于显示复杂的数据结构。JTable 可以遵循 模型视图控制器 (MVC) 设计模式来显示行和列中的数据。JTable 可以生成 TableModelListener、TableColumnModelListener、ListSelectionListener、CellEditorListener 和 RowSorterListener 接口。我们可以使用 MouseAdapter 类或 MouseListener 接口来检测 JTable 的双击事件。我们可以将 MouseEvent 类的 getClickCount() 值设置为 "2"，以检测 JTable 的双击事件。
示例
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public final class DoublClickJTableRowTest extends JFrame {
private JTable table;
private JScrollPane scrollPane;
public DoublClickJTableRowTest() {
setTitle("DoublClickJTableRow Test");
String[] columnNames = {"First Name", "Last Name"};
Object[][] data = {{"Raja", "Ramesh"}, {"Adithya", "Sai"}, {"Vineet", "Kumar"}, {"Krishna", "Kasyap"}};
table = new JTable(data, columnNames) {
public boolean editCellAt(int row, int column, java.util.EventObject e) {
return false;
}
};
table.setFocusable(false);
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent me) {
if (me.getClickCount() == 2) { // to detect doble click events
JTable target = (JTable)me.getSource();
int row = target.getSelectedRow(); // select a row
int column = target.getSelectedColumn(); // select a column
JOptionPane.showMessageDialog(null, table.getValueAt(row, column)); // get the value of a row and column.
}
}
});
scrollPane= new JScrollPane(table);
add(scrollPane);
setSize(375, 250);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String[] args) {
new DoublClickJTableRowTest();
}
}
输出
