tabledemo.java

这是一个用Jtable的一个学习的例子,内容比较简单,但很实用!

/**
 * <p>Title: JAVA表格使用示例</p>
 * <p>Description: 第五章例子</p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @author 苏年乐
 * @version 1.0
 */

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
import javax.swing.event.*;

public class TableDemo  extends JFrame {
  JTextArea txt = new JTextArea(4, 20);
  // TableModel控制所有数据
  class DataModel extends AbstractTableModel {
    Object[][] data = {
        {"one", "two", "three", "four"},
        {"five", "six", "seven", "eight"} ,
        {"nine", "ten", "eleven", "twelve"},
    };
    //当表格改变时输出表格数据
    class TML implements TableModelListener {
      public void tableChanged(TableModelEvent e) {
        txt.setText(""); // Clear it
        for (int i = 0; i < data.length; i++) {
          for (int j = 0; j < data[0].length; j++)
            txt.append(data[i][j] + " ");
          txt.append("\n");
        }
      }
    }

    public DataModel() {
      addTableModelListener(new TML());
    }

    public int getColumnCount() {
      return data[0].length;
    }

    public int getRowCount() {
      return data.length;
    }

    public Object getValueAt(int row, int col) {
      return data[row][col];
    }

    public void
        setValueAt(Object val, int row, int col) {
      data[row][col] = val;
      //暗示变化已经发生
      fireTableDataChanged();
    }

    public boolean
        isCellEditable(int row, int col) {
      return true;
    }
  }//以上是DataModel的函数

  public TableDemo() {
    Container cp = getContentPane();
    JTable table = new JTable(new DataModel());
    cp.add(new JScrollPane(table));
    cp.add(BorderLayout.SOUTH, txt);
    this.setSize(350,200);
    this.show();
  }

  public static void main(String[] args) {
    TableDemo app=new TableDemo();
  }
} ///:~