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法律研究Java 程式，從 JTable 中獲取單元格的值
如要檢索單元格的值，請使用 getValueAt() 方法。作為引數，設定要獲得其單元格值的行和列索引值 −
int rIndex = 5; // row index int cIndex = 1; // column index Object ob = table.getValueAt(rIndex, cIndex);
在控制檯中顯示單元格值 −
System.out.println("Value = "+ob);以下示例如何從單元格中檢索值 −
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));
int rIndex = 5; // row index
int cIndex = 1; // column index
Object ob = table.getValueAt(rIndex, cIndex);
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.COLOR_CHOOSER_DIALOG);
frame.setVisible(true);
}
}輸出
單元格的值顯示在控制檯中 −
更新於: 2019-07-30
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