OOP Program-21

(21) Write a program to create a file name 123.txt, if it does not exist. Append a new data to it if it already exists.  Write  150  integers created randomly into the file using  Text  I/O.  Integers are separated by space.

Program Code:

 import java.io.*;

import java.util.Scanner;

public class OOP_21 

{

   public static void main(String[] args) 

 {

     try (

        PrintWriter pw = new PrintWriter(new FileOutputStream(new File("123.txt"), true));

     ) {

          pw.print("      Semester-4  &  Subject= OOP-1       ");

        for (int i = 0; i < 150; i++) 

  {

          pw.print((int)(Math.random() * 150) + " ");

        }

    } 

    catch (FileNotFoundException fnfe) 

 {

        System.out.println("Cannot create the file.");

        fnfe.printStackTrace();

     }

  }

}

Output: