Why does this code not return just "S" but instead the whole String MINUS the "S"

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0

I am brand new to APCS and am practicing for my test. After analyzing this code with a step-by-step analysis, I'm convinced that the answer isn't listed below but is instead "S". However, my teacher says that the answer is 'D'

Can you explain to me this question?

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Given the following method:

public static String WhatsUp (String str1, String str2)
{
    int index = str1.indexOf(str2);
    if (index != -1)
        str1 = str1.substring(0, index) +
                str1.substring(index + str2.length());
    return str1;
}

What does this line of code output?

System.out.print( WhatsUp(“SpongeBobSquarePants”, “S”));

(A) pongeBobquarePants

(B) pongeBobquarePant

(C) SpongeBobSquarePants

(D) pongeBobSquarePants

(E) Patrick

asked 31 secs ago

Ronak Shah

1

Why does this code not return just "S" but instead the whole String MINUS the "S"