Question

In Java language. Write a brief program that writes your name to a file in text format and then reads it back. Use the PrintWriter and Scanner classes.

Answer 1

SOURCE CODE:

aaa.java file

import java.io.*;
import java.util.*;
public class aaa {
    public static void main(String[] args) throws IOException {
      Scanner sc=new Scanner(System.in);
      System.out.println("Enter Your name:");
      // reading user name using scanner
      String s=sc.nextLine();      
      // opening the file "user.txt" in write mode using PrintWriter class
      PrintWriter writer= new PrintWriter(new File("user.txt"));
      // writing in file
      writer.write(s);
      // closing the file                                                 
      writer.close();

      // opening file "user.txt" in read mode
      FileReader f=new FileReader("user.txt");
      int k;

      System.out.println("\nThe file contains the following text:\n");
      //printing the contents of the file
      while((k=f.read())!=-1)
      {
        System.out.print((char)k);
      }
      f.close();

    }
}

CODE SCREENSHOT:

OUTPUT SCREENSHOT:

Output1:-

output-2:-