Java End-of-file

 The challenge here is to read  lines of input until you reach EOF, then number and print all  lines of content.

Hint: Java's Scanner.hasNext() method is helpful for this problem.

Input Format

Read some unknown  lines of input from stdin(System.in) until you reach EOF; each line of input contains a non-empty String.

Output Format

For each line, print the line number, followed by a single space, and then the line content received as input.

Sample Input

Hello world
I am a file
Read me until end-of-file.

Sample Output

1 Hello world
2 I am a file
3 Read me until end-of-file.

SOLUTIONS:

import java.io.*;
import java.util.*;
public class Solution {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int i=0;
        while(scan.hasNextLine()){
        String str=scan.nextLine();
            if (str.contains("end-of-file")){
                i++;
                System.out.println(i+" "+str);
                break;
            }else{
                i++;
                System.out.println(i+" " +str);       
            }
        }  
//         I don't know why hackerrank didn't accept my below solution. when I run it in eclipse it worked as well as it is required. anyway  it is the 2. solution.
//          Scanner scan = new Scanner(System.in);
//         int i = 0;
//         while(true){
//         String str=scan.nextLine();
//             if (str.contains("end-of-file")){
//                 i++;
//                 System.out.println(i+" "+str);
//                 break;
//             }else{
//                 i++;
//                 System.out.println(i+" " +str);
                
//             }
//         }
        
    }
}