I keep getting the NullPointerException when program reaches:
String n=console.readLine("What's the name?");

Question

I keep getting the NullPointerException when my Java program reaches the line: 
String n=console.readLine("What's the name?");
This is the complete program:
import java.io.Console;
public class Test{
    public static void main(String[] args){
        Console console=System.console();
        String name="What's your name? ";
        System.out.println(name);
        String n=console.readLine("What's the name?");
    }
}

Gyorgy Andorka · Answer

This is probably because you're running your program in an IDE, which doesn't use the console. Your code would work in Workspaces, or if executed from the command line. As an alternative, you can use the Scanner class inside of your IDE. (Scanner scanner = new Scanner(System.in); note that you have to print a separate prompt message (if needed) before using e.g. the .nextLine() method for reading the input)
https://teamtreehouse.com/community/null-pointer-exception-error-2
http://stackoverflow.com/questions/14439226/console-input-error-java-lang-nullpointerexception

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Karim Zibari

Karim Zibari

I keep getting the NullPointerException when program reaches: String n=console.readLine("What's the name?");

1 Answer

Gyorgy Andorka

Gyorgy Andorka