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Java

Gaurang Kotasthane
Gaurang Kotasthane
1,394 Points
Posted by Gaurang Kotasthane
Gaurang Kotasthane
1,394 Points

Exception in thread "main" java.lang.NullPointerException at MyClas.main(MyClas.java:6) ERROR

this is my code

import java.io.Console;

class MyClas { public static void main(String[ ] args) { Console console = System.console(); String name = console.readLine("name is "); console.printf("%s is your name",name);

} }

when I run this code in eclipse [ since workspace aren't working currently ] I keep getting this error Exception in thread "main" java.lang.NullPointerException at MyClas.main(MyClas.java:6) ERROR

3 Answers

Joshua Stoltzfus
Joshua Stoltzfus
9,459 Points
Joshua Stoltzfus
Joshua Stoltzfus
9,459 Points

Hi Gaurang,

You can use the following with scanner.

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    System.out.println("name is ");

    String name = scanner.nextLine();

    System.out.println(name + " is your name");


}

}

Geovanie Alvarez
Geovanie Alvarez
21,500 Points
Geovanie Alvarez
Geovanie Alvarez
21,500 Points

You can use Scanner in eclipse and work the same :p

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Name is: \n");
        String name = scanner.nextLine();

        System.out.printf("%s is your name.", name);
    }
}
Jonathan Hector
Jonathan Hector
5,225 Points
Jonathan Hector
Jonathan Hector
5,225 Points

Try removing the String in console.readLine. You don't need to write a String inside the readLine method. It's part of the Utility package.

Scanner class is more powerful as suggested by Joshua and Geovanie but I still put an answer for you just in case.

Console console = System.console();

System.out.prinln("What is your name");
String name = console.readLine();
console.printf("%s is your name", name);