Question

Hi I am stuck in a particular case

I have two arrays, ArrayA[] with 50 items and another ArrayB[] with 10 items.

I want to convert the values of the ArrayB[] (10 items) to be 1 if they match a value in ArrayA[] and 0 if they don’t.

I have been trying various techniques for past 5 hours- would be great to get some guidance in what I can do to get this!

Thanks for any help!

Answer 1

If I understand you well, this is what you are looking for:

public static void method(int[] arrayA, int[] arrayB)
{
    boolean match = false;
    label: for(int i = 0; i < arrayA.length; i++)
        for(int j = 0; j < arrayB.length; j++)
            if(arrayA[i] == arrayB[j])
            {
                match = true;
                break label;
            }

    int k = (match?1:0);

    for(int i = 0; i < arrayB.length; i++)
        arrayB[i] = k;
}

If not, please elaborate!