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mystery4

Language/Type: Java recursion recursive tracing
Author: Whitaker Brand

For each call to the following method, indicate what value is returned: 

public int mystery4(int n) {
    if (n < 0) {
        return mystery4(-n);
    } else if (n < 10) {
        return n;
    } else {
        return n % 10 + mystery4(n / 10);
    }
}
mystery4(8)
mystery4(74)
mystery4(-52)
mystery4(3052)
mystery4(82534)

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