returnoperation.java

航空航天订票系统 是数据库的课程设计 单机版

package GraphicsUI;

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

public class ReturnOperation extends QueryFlight implements ActionListener {
	JButton retur;

	JPanel jp;

	public static boolean flag = false;

	public ReturnOperation(MainFrame m) {
		super(m);
		retur = new JButton("航班退票");
		jp = new JPanel();
		jp.setLayout(new FlowLayout());
		jp.add(retur);
		retur.addActionListener(this);
		super.two.add(jp);
	}

	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == retur) {
			if (!flag) {
				flag = true;
				Object t1, t2;
				int t = super.jt.getSelectedRow();
				System.out.println("t=" + t);
				if (t == -1) {
					JOptionPane.showMessageDialog(null, "请选中一个航线", "错误",
							JOptionPane.ERROR_MESSAGE);
					flag = false;
				} else {
					t1 = super.jt.getValueAt(t, 0);
					// t2 = super.jt.getValueAt(t-1, 8);
					System.out.println("t1=" + t1);
					// System.out.println("t2=" + t2);
					new ReturnButton(t1);
				}
			}
		}
		if (e.getSource() == super.select)
			super.actionPerformed(e);
		if (e.getSource() == super.clear)
			super.actionPerformed(e);
	}
}