How do I fix this Java error?

Question

import java.util.Scanner;


public class NameID {
        
        public static void main(String[] args) {
                
        Scanner questioner = new Scanner(System.in);
        
        double name;

                System.out.println("Hello stranger, what is your name?");
                
                System.out.println("Enter your name: ");
                
                name = questioner.nextDouble();
                
                System.out.println("Welcome to Elderzia, " + name);
                
                

                
        }

}

Here's the output:

Hello stranger, what is your name?
Enter your name:
Zalvager
Exception in thread "main" java.util.InputMismatchException
        at java.util.Scanner.throwFor(Unknown Source)
        at java.util.Scanner.next(Unknown Source)

Anonymous · Accepted Answer

import java.util.Scanner;

public class NameID {

public static void main(String[] args) {

Scanner questioner = new Scanner(System.in);

String name;

System.out.println("Hello stranger, what is your name?");

System.out.println("Enter your name: ");

name = questioner.next();

System.out.println("Welcome to Elderzia, " + name);

fixed code above will work

explanation: The reason is a double is a number value like 2.01111 you needed to use a String for the name and questioner.next (); will take in a String value.

AnalProgrammer · Answer

Type in a number.  You are tying to force a String into a double field.
Or change the name variable to be a String.
Also change the assignment to be
name = questioner.next();

Have fun.

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How do I fix this Java error?

2 Answers