Question

This is my assignment:

Write a program where the user enters a string, and the program echoes it to the monitor with one character per line:

C:\>java LinePerChar
Enter a string:
Octopus

O
c
t
o
p
u
s

I have tried, but I’m getting some compilation errors. Here’s my code:

import java.util.*;

class CharactorEcho{
    public static void main(String args []){

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter a string :");

        try {
            String inputString = sc.nextLine();
            for(int i=0; i < sc.length(); i++) {
                char c = inputString.charAt(i);
                System.out.println("" + c);
            }
        } catch(IOException e) {

        }
    }
}

Answer 1

Two Issues:

Change for(int i=0; i<sc.length(); i++){ to for(int i=0; i<inputString.length(); i++){

You care comparing against the scanner and not the input string.

Also, please try catching

   java.util.NoSuchElementException
   java.lang.IllegalStateException

in place of IOException, as your statement sc.nextLine() with throws NoSuchElementException and IllegalStateException, not IOException.

Make sure you add the related import statements.