/******************************
*          備份版塊           *
******************************/


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

public class backUp implements ActionListener
{   private static JFrame frm;
	static File file=new File("backUp.dat");
	static Byte bt[];
	static FileInputStream fi;
	static FileOutputStream fo;
	static DataInputStream in;
	static DataOutputStream out;
	public void actionPerformed(ActionEvent e){
		
		frm=phonenum.getFrame();
		try{
			fi=new FileInputStream("phonenum.mdb");
			fo=new FileOutputStream(file);
			in= new DataInputStream(fi);
			out = new DataOutputStream(fo);
			int i;
		        while ( (i = in.read()) != -1) {
		          out.write(i); //依次從輸入流中讀入字符，并將字符寫入到輸出流
		        }
		        in.close(); //關(guān)閉輸入流
		        out.close();
		}
		
		catch(Exception e2){
			
		}
		JOptionPane.showMessageDialog(frm,"備份完畢,還原請將backUp.dat改為phonenum.mdb覆蓋原文件");
	}
	
}