Question

Lab 10

Write a Java program that reads the integer numbers in a text file (numbers.txt) and stores the numbers to a binary file (binaryNumber.dat).The number.txt file contains the following numbers:

1 2 3 4 5 6 7 8 9 0

Answer 1

I have included my code and screenshots in this answer. In case, there is any indentation issue due to editor, then please refer to code screenshots to avoid confusion.

------------------solution.java---------

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

public class solution
{
   public static void main(String[] args) throws Exception
   {
       File file = new File("numbers.txt"); //open text file reader
       DataOutputStream dos = new DataOutputStream(new FileOutputStream("binaryNumber.dat")); //output binary file
       Scanner sc = new Scanner(file); //text file scanner object
       int number;
       while (sc.hasNextInt()) { //check if file has more integers
           number = sc.nextInt(); //read int from text file
           dos.writeInt(number); //write to binary file
       }
       dos.close();

       boolean end_of_file = false;
       DataInputStream in = new DataInputStream(new FileInputStream("binaryNumber.dat")); //open binary file for reading
       while(! end_of_file){ //read until end of file
           try{
               number = in.readInt(); //read int and print on to screen
               System.out.print(number + " ");
           } catch(EOFException e){
               end_of_file = true;
           }
       }
       System.out.println("\n");
       in.close();
   }
}

------------------screenshot solution.java---------

-/java/read text file write bin/solution.java - Sublime Text (UNREGISTERED) ti 1) 9:34 AM * main.cpp numbers.txt binary Number dat solution.java import java.util. *; import java.io.*; 2 public class solution 4 5 6 public static void main(String[] args) throws Exception { File file = new File("numbers.txt"); //open text file reader DataOutputStream dos = new DataOutputStream(new FileOutputStream("binaryNumber.dat")); //output binary file Scanner sc = new Scanner(file); //text file scanner object int number; while (sc. hasNextInt() { // check if file has more integers sc.nextInt(); //read int from text file dos.writeInt(number); //write to binary file number dos.close(); boolean end_of_file = false; DataInputStream in = new DataInputStream(new FileInputStream("binaryNumber.dat")); //open binary file for reading while(! end_of_file) { //read until end of file try{ number in.readInt(); //read int and print on to screen System.out.print(number + " "); } catch (EOFException e) { end_of_file = true; بها System.out.println("\n"); in.close(); 30 31 Line 31, Column 2 Tab Size: 4 Java

------------------Output--------

-/java/read text file write bin/numbers.txt - Sublime Text (UNREGISTERED) t0) 9:34 AM numbers.txt binary Number.dat solution.java 1 2 3 4 5 6 7 8 9 Line 1, Column 20 Tab Size: 4 Plain Text

9:34 AM vs@ubuntu: -/java/read text file write bin vs@ubuntu:-/java/read text file write bin$ javac solution.java vs@ubuntu:-/java/read text file write bins java solution 1 2 3 4 5 6 7 8 9 0 vs@ubuntu:-/java/read text file write bins

-/java/read text file write bin/binaryNumber.dat - Sublime Text (UNREGISTERED) ti 1) 9:34 AM * binary Number.dat x solution.java numbers.txt 0000 0001 0000 0002 0000 0003 0000 0004 0000 0005 0000 0006 0000 0007 0000 0008 0000 0000 0000 0000 O Line 3, Column 21 Tab Size: 4 Plain Text

------------------------------------

I hope this helps you,

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