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Legal Studies如何在 Java 中设置 JTable 特定单元格的值？
假设我们最初的表格为下面表格，其中特定单元格 [2,1] 的值为“Kane” −
这是一个为以上表格设置新值示例。在这里，我们将更新单元格 [2,1] −
table.setValueAt("Guptill", 2, 1);让我们看看完整的示例 −
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.ListSelectionModel;
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(), "ODI Rankings", TitledBorder.CENTER,
TitledBorder.TOP));
String[][] rec = {
{ "1", "Steve", "AUS" },
{ "2", "Virat", "IND" },
{ "3", "Kane", "NZ" },
{ "4", "David", "AUS" },
{ "5", "Ben", "ENG" },
{ "6", "Eion", "ENG" },
};
String[] header = { "Rank", "Player", "Country" };
JTable table = new JTable(rec, header);
table.setShowHorizontalLines(true);
table.setGridColor(Color.orange);
table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
table.setValueAt("Guptill", 2, 1);
panel.add(new JScrollPane(table));
frame.add(panel);
frame.setSize(550, 400);
frame.setVisible(true);
}
}输出如下所示，其中单元格 [2,1] 中的更新值为“Guptill”。我们使用值“Kane”初始化了该特定表格单元格，但使用 setValueAt() 方法，我们已成功将其更新为“Guptill”，如下所示 −
更新于： 30-Jul-2019
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