Clever Geek Handbook

Error in java console program

import java.util.Scanner;

public class Example {
    public static void main(String Args[]) {
        Scanner sc = new Scanner("System.in");
        System.out.println("Yntreq (1/2):");
        int y = sc.nextInt();
        switch (y) {
            case 1:
                System.out.println("Duq yntrel eq 1-y");
                break;
            case 2:
                System.out.println("Duq yntrel eq 2-y");
                break;
            default:
                break;
        }

    }
}

And when it starts eclipse shows this error

Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Unknown Source)
at java.util.Scanner.next(Unknown Source)
at java.util.Scanner.nextInt(Unknown Source)
at java.util.Scanner.nextInt(Unknown Source)
at Example.main(Example.java:7)
+3


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4 answers


System.in

is not a string!

Edit:

Scanner sc = new Scanner("System.in");


in

Scanner sc = new Scanner(System.in);
+3


source


Remove double quote "from" System.in "



Scanner sc = new Scanner(System.in);
instead of
Scanner sc = new Scanner("System.in");
+1


source


remove ""

from Scanner sc = new Scanner("System.in");

iee

Scanner sc = new Scanner(System.in);
+1


source


you passed an invalid parameter in the constructor, the constructor syntax for the input stream is

public Scanner(InputStream source)

Creates a new scanner that produces values ​​scanned from the specified input stream. The bytes from the stream are converted to characters using the platform's default base encoding. Parameters: source

- input stream for scanning

example: Scanner sc = new Scanner(System.in);

0


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