JAVA Console error

Question

If i run this code below in Netbeans

import java.io.Console;
public class Introduction {        
    public static void main(String[] args) {
        Console console= System.console();// creates a java Object which has method that allows us to write
        console.printf("Hallo parvel");
    }        
}

It gives me the error:

Exception in thread "main" java.lang.NullPointerException
    at Introduction.main(Introduction.java:10)
/home/parvel/.cache/netbeans/8.1/executor-snippets/run.xml:53: Java returned: 1
BUILD FAILED (total time: 0 seconds).

please help

`System.console()` isn't supported in most IDEs. It returns `null`. — 4castle, Mar 29 '17 at 23:19

score 0 · Accepted Answer · answered Mar 29 '17 at 23:24

0

java.io.Console object is null because there is no console attached to it.

Try to run from command line or attached console to it.

Find more details about it here: https://netbeans.org/bugzilla/show_bug.cgi?id=111337

answered Mar 29 '17 at 23:24

Abhilekh Singh

2,845
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thanx so much, stay blessed – parvel Mar 30 '17 at 17:29

score 0 · Answer 2 · answered Mar 29 '17 at 23:29

0

You need to run this from a terminal using java -jar myjar.jar

In order to have this print to console using System.console();

You will need to export this as a runnable jar

then you can run java -jar myjar.jar and it will output Hallo parvel

answered Mar 29 '17 at 23:29

Robert I

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thanx so much, stay blessed – parvel Mar 30 '17 at 17:29

JAVA Console error

2 Answers2