Java 程序如何在 JTable 中选择一列?
java 8object oriented programmingprogramming更新于 2025/9/13 19:24:17
要在 JTable 中选择一列，请使用 setColumnSelectionInterval() 并设置要选择的列的间隔。
例如，如果您想选择单个列，即第 2 列，则在 setColumnSelectionInterval() 方法中将间隔设置为 (2,2)。
以下是在 Java 中从表中选择一列的示例 −
示例
package my;
import java.awt.Color;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.TitledBorder;
public class SwingDemo {
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(), "Stock", TitledBorder.CENTER, TitledBorder.TOP));
String[][] rec = {
{ "001", "Shirts", "40" },
{ "002", "Trousers", "250" },
{ "003", "Jeans", "25" },
{ "004", "Applicances", "90" },
{ "005", "Mobile Phones", "200" },
{ "006", "Hard Disk", "150" },
};
String[] header = { "ID", "Product", "Quantity" };
JTable table = new JTable(rec, header);
table.setShowHorizontalLines(true);
table.setGridColor(Color.blue);
table.setColumnSelectionAllowed(true);
table.setRowSelectionAllowed(false);
table.setColumnSelectionInterval(2,2);
panel.add(new JScrollPane(table));
frame.add(panel);
frame.setSize(550, 400);
frame.setVisible(true);
}
}
这将产生以下输出 −
Above, we have also set the setRowSelectionAllowed() as FALSE and setColumnSelectionAllowed() as TRUE since we need to select column here.
