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Java

Posted by Yasuaki Shibata
Yasuaki Shibata
1,839 Points

I can't execute readLine nor nextLine. java.util.Scanner.nextLine(Unknown Source)

I use sublimetext 3. And I got this error. How can I fix this?

What is your name: Exception in thread "main" java.util.NoSuchElementException: No line found at java.util.Scanner.nextLine(Unknown Source) at Introductions.main(Introductions.java:9)

import java.util.Scanner;

public class Introductions {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        // Welcome to the Introductions program!  Your code goes below here
        System.out.print("What is your name: ");
        String firstName = scan.nextLine();
        System.out.printf("Hello, my name is %s\n",firstName);
        System.out.printf("%s is learning to write Java\n",firstName);
  }
}

2 Answers

rtholen
rtholen
Courses Plus Student 11,859 Points

You code is correct and should work as is. I compiled it from a command line in Linux and ran it successfully, even if I didn't enter any name and just hit return. As Jon suggested, likely something wonky with your development environment.

Yasuaki Shibata
Yasuaki Shibata
1,839 Points

Hi rtholen,

As you done, I should have compiled it from another environment. I'll check on Linux next time! Thank you so much!

Jon Kussmann
PLUS
Jon Kussmann
Courses Plus Student 7,254 Points
Jon Kussmann
Jon Kussmann
Courses Plus Student 7,254 Points

Hi Yasuaki,

It's possible that your program isn't being run correctly. I suggest you download Eclipse instead of using Sublime Text since it is an IDE instead of a text editor. I hope that helps.

Yasuaki Shibata
Yasuaki Shibata
1,839 Points

Hi Jon,

As you said, my code was correct but my environment has a problem. Sublime text doesn't accept interactive input. So I compiled it on sublime text, and launch console from sublime text and execute it. Well done! I will try Eclipse later. Thank you so much!