addcityinfowindow.java

一次数据结构的课程设计

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

public class addCityInfoWindow extends JDialog{

	private Graph g;
	private cityFile file;
		public addCityInfoWindow(JFrame f) {
			super(f,"添加城市信息",true);

			g = new Graph();
			file = new cityFile();
			file.inputfromInfoFile(g);

			setLayout(null);
			l = new JLabel("城市名:");
			l.reshape(30,30,60,20);
			t = new JTextField(10);
			t.reshape(80,30,100,20);
			b1 = new JButton("确定");
			b1.reshape(35,80,65,20);

			b1.addActionListener(new
			ActionListener(){
				public void actionPerformed(ActionEvent event){
				if(t.getText().equals("")){
					JOptionPane.showMessageDialog(null,"城 市 名 不 能 为 空!!");
					t.grabFocus();
				}
					else{

						//int c = g.changetoNum(t.getText());
						//if(c>=0)
						//	JOptionPane.showMessageDialog(null,"城 市 已 存 在!!");
						//else
						//{
							if(g.insertCity(t.getText()))
							{
								JOptionPane.showMessageDialog(null,"城 市 添 加 成 功!!");
								file.outtoNameFile(g.citylist,g.cityNum);
							}
							else
							    JOptionPane.showMessageDialog(null,"城 市 存 满/也存在 !!");
						//}
					}
				}
		});
			b2 = new JButton("取消");
			b2.reshape(120,80,65,20);
			b2.addActionListener(new
			ActionListener(){
				public void actionPerformed(ActionEvent event){
					setVisible(false);
				}
		});

		add(l);
		add(t);
		add(b1);
		add(b2);
		setSize(230,160);
		setLocation(400,200);

		}
		private JLabel l;
		private JTextField t;
		private JButton b1;
		private JButton b2;






}