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Java

Posted by Dominik Flex
Dominik Flex
354 Points

Java - problem with method

Hello,

At workspaces I can start java Introductions.java without problems - printf("Hello"), when I am at Intellij IDEA and start java Introductions.java: NullPointerException. Where is the problem?

Thanks.

Philip Gales
Philip Gales
15,193 Points

Can you share your code for the file?

Dominik Flex
Dominik Flex
354 Points 
import java.io.Console;

public class Introductions {

    public static void main(String[] args) {
        Console console = System.console();
        console.printf("Hello!");
    }
}

1 Answer

Philip Gales
Philip Gales
15,193 Points
Philip Gales
Philip Gales
15,193 Points

Here is what I would use.

public class Introductions {

    public static void main(String[] args) {
        System.out.println("Hello!");
    }

}

There is even a shortcode. Type 'sout' and then press <tab> and it will type it for you.

Dominik Flex
Dominik Flex
354 Points

I have programmed 2 years in Java, System ... is shorter solution, but I want to know, why is problem, when I use Console bla bla :-)

Philip Gales
Philip Gales
15,193 Points

http://stackoverflow.com/questions/26470972/trying-to-read-from-the-console-in-java