当 Java Swing 中某一列的宽度发生变化时，如何仅将调整应用于 JTable 的下一列?
java 8object oriented programmingprogrammingswing
要仅将调整应用于下一列，请使用 setAutoResizeMode 并设置模式。此处的模式为 AUTO_RESIZE_NEXT_COLUMN。这将允许您仅调整下一列，即使拖动任何列标题来调整大小。
让我们首先看一个创建表格的示例 −
示例
package my;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class SwingDemo {
public static void main(String[] argv) throws Exception {
DefaultTableModel tableModel = new DefaultTableModel();
JTable table = new JTable(tableModel);
tableModel.addColumn("Technology");
tableModel.addColumn("BCA");
tableModel.addColumn("MCA");
tableModel.addColumn("Lectures");
// 仅对下一列应用调整
table.setAutoResizeMode(JTable.AUTO_RESIZE_NEXT_COLUMN);
tableModel.addRow(new Object[] { "F#", "Yes", "No", "20"});
tableModel.addRow(new Object[] { "Blockchain", "Yes", "No", "30"});
tableModel.addRow(new Object[] { "SharePoint", "Yes", "Yes", "25"});
tableModel.addRow(new Object[] { "AWS", "No", "Yes", "25"});
tableModel.addRow(new Object[] { "Python", "Yes", "No", "20"});
tableModel.addRow(new Object[] { "Scala", "Yes", "No", "30"});
tableModel.addRow(new Object[] { "Swift", "No", "Yes", "35"});
tableModel.addRow(new Object[] { "C#", "Yes", "Yes", "50"});
tableModel.addRow(new Object[] { "NodeJS", "No", "Yes", "40"});
tableModel.addRow(new Object[] { "MVC", "Yes", "No", "30"});
tableModel.addRow(new Object[] { "ASP.NET", "Yes", "Yes", "35"});
tableModel.addRow(new Object[] { "Java", "Yes", "No", "55"});
tableModel.addRow(new Object[] { "jQuery", "Yes", "Yes", "30"});
Font font = new Font("Verdana", Font.PLAIN, 12);
table.setFont(font);
JFrame frame = new JFrame();
frame.setSize(600, 400);
frame.add(new JScrollPane(table));
frame.setVisible(true);
}
}
输出
现在，如果您要调整任何列(在本例中为 BCA)的大小，则所有调整都会影响该列本身以及下一列(在本例中为 MCA)−
