数据结构
网络
RDBMS
操作系统
Java
MS Excel
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP
物理
化学
生物
数学
英语
经济学
心理学
社会科学
时尚研究
法律研究如何使用 Java 中的 TableModel 从表单元格中获取值？
首先，使用 DefaultTableModel 创建一个表 −
String data[][] = {
{"Australia","5","1"},
{"US","10","2"},
{"Canada","9","3"},
{"India","7","4"},
{"Poland","2","5"},
{"SriLanka","5","6"}
};
String col [] = {"Team","Selected Players","Rank"};
DefaultTableModel tableModel = new DefaultTableModel(data,col);
JTable table = new JTable(tableModel);现在，使用 getModel() 从表单元格中获取该值 −
Object ob = table.getModel().getValueAt(3, 2);
System.out.println("Value = "+ob);以下是一个通过 TableModel 从表单元格中获取值的示例 −
示例
package my;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class SwingDemo {
public static void main(String[] argv) throws Exception {
JFrame frame = new JFrame("Demo");
JPanel panel = new JPanel();
String data[][] = {
{"Australia","5","1"},
{"US","10","2"},
{"Canada","9","3"},
{"India","7","4"},
{"Poland","2","5"},
{"SriLanka","5","6"}
};
String col [] = {"Team","Selected Players","Rank"};
DefaultTableModel tableModel = new DefaultTableModel(data,col);
JTable table = new JTable(tableModel);
table.getTableHeader().setResizingAllowed(false);
Dimension dim = new Dimension(50,2);
table.setIntercellSpacing(new Dimension(dim));
Object ob = table.getModel().getValueAt(3, 2);
System.out.println("Value = "+ob);
JScrollPane scrollPane = new JScrollPane(table);
panel.add(scrollPane);
frame.add(panel);
frame.setSize(600,400);
frame.setUndecorated(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getRootPane().setWindowDecorationStyle(JRootPane.INFORMATION_DIALOG);
frame.setVisible(true);
}
}输出
单元格的值将在控制台中显示 −
更新日期：30-07-2019
712 次浏览
广告