mainframe.java

用JAVA做的电话本小程序

package phonebook2;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import javax.swing.JOptionPane;


public class MainFrame extends JFrame{
    JPanel panel1=new JPanel(new GridLayout(8,1),true);
    PHbook phonebook=new PHbook();
    JLabel label1=new JLabel("ID | 姓名 | 电话 | 学校/年龄 |类型");
    JLabel[] labelgroup=new JLabel[5];
    JMenuBar menubar=new JMenuBar();
    JMenu menu_add=new JMenu("添加");
    JMenu menu_phonebook=new JMenu("电话本");
    JMenuItem itemadd_ter=new JMenuItem("教师");
    JMenuItem itemadd_stu=new JMenuItem("学生");
    JMenuItem itemadd_scan=new JMenuItem("浏览");
    JMenuItem itemadd_quit=new JMenuItem("退出");
    JMenuItem item_find=new JMenuItem("查找");
    JButton nextbutton=new JButton("下一页");
    JButton prevbutton=new JButton("上一页");
    int index=0;
    boolean scan=true;
    PropertyBox property=new  PropertyBox(this);
    
    public MainFrame(){
        super("电话本 2");
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        this.setSize(300, 300);
        panel1.setPreferredSize(new Dimension(300,300));
        menu_add.add(itemadd_ter);
        menu_add.add(itemadd_stu);
        menu_phonebook.add(itemadd_scan);
        menu_phonebook.add(itemadd_quit);
        menu_phonebook.add(item_find);
        menubar.add(menu_phonebook);
        menubar.add(menu_add);
        panel1.add(label1);
        initlabels();
        setMenuitem();
        setButton();
        setLabel();
        this.setJMenuBar(menubar);
        panel1.setVisible(true);             
        getContentPane().add(panel1);
        panel1.add(prevbutton);
        panel1.add(nextbutton);
        showItems();
        scan=true;
    }

 void setMenuitem(){
     itemadd_quit.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
               System.exit(0);
            }

     });

      itemadd_ter.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
              String name,phone,school;
             
              name=JOptionPane.showInputDialog(null, "请输入教师名字", null);
              phone=JOptionPane.showInputDialog(null, "请输入教师电话", null);
              school=JOptionPane.showInputDialog(null, "请输入教师学校", null);
              
                if(name==null)
              {
                 return;
              }
              if(phone==null)
              {
                  return;
              }
              if(school==null)
              {
                  return;
              }
              PHbookItem temp=new Teacher(name,phone,school);
              phonebook.addItem(temp);
               showItems();
            }

        });

        itemadd_stu.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
              String name,phone,age;

              name=JOptionPane.showInputDialog(null, "请输入学生名字", null);
              phone=JOptionPane.showInputDialog(null, "请输入学生电话", null);
              age=JOptionPane.showInputDialog(null, "请输入学生年龄", null);
           
              if(name==null)
              {
                  return;
              }
              if(phone==null)
              {
                 return;
              }
              if(age==null)
              {
                return;
              }
              PHbookItem temp=new Student(name,phone,age);
              phonebook.addItem(temp);
              showItems();
            }

        });
       item_find.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
                String name;
                name=JOptionPane.showInputDialog(null, "请输入要查找的名字：", null);
                if(name==null)
                {
                    return;
                }
                
                else{
                    if(phonebook.Find(name, 1).pbook.size()==0)
                        JOptionPane.showConfirmDialog(null, "没有找到条目", "查找", 2);
                    showresult(phonebook.Find(name, 1));
                    scan=false;
                }
            }
           
       });
       
       itemadd_scan.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
                scan=true;
                showItems();
            }
           
       });
 }

 void setLabel()
 {
  for(int i=0;i<5;i++)
   {      final int j=i;
          labelgroup[i].addMouseListener(new java.awt.event.MouseAdapter(){
                @Override
               public void mouseClicked(java.awt.event.MouseEvent evt) {
                LabelMouseClicked(phonebook,j,evt);
            }
          });
    
   }
 }

 void LabelMouseClicked(PHbook p,int i,MouseEvent evt)
 {
     if((i+index+1)<=phonebook.pbook.size()&&scan)
     {
          property.initPropertyBox(p, index+i);
     }
 }
 
void setButton()
{
    prevbutton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                if(index!=0&&scan)
                       index-=5;
                showItems();
            }
    });
    nextbutton.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
                if((index+6)<=phonebook.pbook.size()&&scan)
                {
                    index+=5;
                }
                showItems();
            }        
    });
}

void showresult(PHbook p)
{
   for(int i=0;i<5;i++)
      {  if((i+1)<=p.pbook.size())
         labelgroup[i].setText((i+1)+"  "+p.getItem(i).toString()+"   "+
                 (p.getItem(i).getClass()==Teacher.class?"Teacher":"Student" ));
         else{
             labelgroup[i].setText((i+1)+"   还没有条目");
         }
      }
    
}
 void showItems()
 {
     for(int i=0;i<5;i++)
      {  if((i+index+1)<=phonebook.pbook.size())
         labelgroup[i].setText((i+index+1)+"  "+phonebook.getItem(i+index).toString()+"   "+
                 (phonebook.getItem(i+index).getClass()==Teacher.class?"Teacher":"Student" ));
         else{
             labelgroup[i].setText((i+index+1)+"   还没有条目");
         }
      }
     repaint();
 }

 void initlabels(){
     for(int i=0;i<5;i++)
     {
         labelgroup[i]=new JLabel();
         panel1.add(labelgroup[i]);
     }

 }
    public static void main(String[] args) {
       MainFrame mainframe=new MainFrame();
       mainframe.setVisible(true);       
    }

}