Problem: 7
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.import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner scanner = new Scanner(System.in);
int lineNumber = 1;
while (scanner.hasNext()) {
String line = scanner.nextLine();
System.out.println(lineNumber + " " + line);
lineNumber++;
}
scanner.close();
}
}
output:
