java boolean array with size from user input

Question

I am prompting the user to enter binary digits as a String. I am trying to declare and instantiate an array of boolean elements. The array should be equal to the number of digits in the String entered by user. Not sure what I'm doing wrong here but am thinking I need to use the String length() method?

public class Binary {

    public static void main ( String [] args ) {

        Scanner scan = new Scanner(System.in);

        System.out.print("Enter some binary digits > ");
        String value = scan.nextLine();

        boolean [] booleanArray = new boolean [value];
    }
}

your value variable is a string, but array declaration must take an int as length, @Gendarme +1 — Oussema Aroua
– Oussema Aroua, Commented May 10, 2016 at 20:00

RaminS · Accepted Answer · 2016-05-10 19:54:01Z

3

public class Binary {

    public static void main ( String [] args ) {

        Scanner scan = new Scanner(System.in);

        System.out.print("Enter some binary digits > ");
        String value = scan.nextLine();


        boolean [] booleanArray = new boolean [value.length()];
        //note that initially the values stored in the array are all false
    }
}

edited May 10, 2016 at 19:54

RaminS

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answered May 10, 2016 at 19:47

Nadim Baraky

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