bookwindow.java

图书馆的图书管理系统！ 图书查询

package labraryManager;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class BookWindow extends JFrame implements ActionListener{
    public static final int WIDTH=1000;
    public static final int HEIGHT=200;
    public JTextArea t;
    public JTable jt=null;
    String[] s=null;
    String[][] ob=null;

    

    public BookWindow(Vector v){
    	setSize(WIDTH,HEIGHT);
    	setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
    	addWindowListener(new WindowDestroyer());
    	setTitle("图书管理系统");
    	Container x=getContentPane();
    	
    	
    	x.setLayout(new BorderLayout());
    	s=(String[])v.elementAt(0);
    	if(v.size()-1>=5){
    	ob=new String[v.size()-1][s.length];}
    	else ob=new String[5][s.length];
    	for(int n1=1;n1<v.size();n1++){
    		for(int n2=0;n2<s.length;n2++){
    			ob[n1-1][n2]=(String)((Vector)(v.elementAt(n1))).elementAt(n2);
    		}
    	}
    	jt=new JTable(ob,s);
    	jt.setEnabled(false);
    	JLabel l=new JLabel("图书信息");
    	x.add(l,BorderLayout.NORTH);
    	
    	JScrollPane st=new JScrollPane(jt);
    	
    	st.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    	st.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    	x.add(st,BorderLayout.CENTER);
    	JButton b=new JButton("返回上一界面");
    	b.addActionListener(this);
    	JPanel j=new JPanel();
    	j.setLayout(new BorderLayout());
    	j.add(b,BorderLayout.EAST);
    	x.add(j,BorderLayout.SOUTH);

    }
    public void actionPerformed(ActionEvent e){
    	if(e.getActionCommand().equals("返回上一界面"))
    	{CheckWindow x=new CheckWindow();
	    x.setVisible(true);
	    dispose();
	    }
    	else
    		System.out.println("Error!");
    }
}