Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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package encrypt1;

import java.io.*;
import java.util.*;

public class Encrypt1 {

    public static void main(String[] args) {
       
        if(args.length!2)    ERROR MESSAGE        {
        System.out.println("Invalid number of argumentss. Usage:src target");
    }
        try {
       BufferedInputStream in = new BufferedInputStream (new FileInputStream(args[0])); 
        
        // Create BufferedOutputStream from bos 
        BufferedOutputStream out = new BufferedOutputStream (new FileOutputStream(args[1])); 
        
        // Declare the variable num
        int buffer;
        
        // Checks content in the variable num is not equal to -1
        while ((buffer=in.read())!=-1)
        {
        // Call the function Write()     
        out.write(buffer+5);
        
        }
        System.out.println("Encrypted file saved");
    }
    catch(IOException ex)
    {
        ex.printStackTrace();
    }
}
}

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