Compound Boolean Expressions

AP Computer Science A· difficulty 4/5

public static int run() {
    int x = 5;
    if (x > 0 && x++ < 10 || x++ > 100) {
        x += 1;
    }
    return x;
}
// Call: System.out.println(run());

What is printed?

A
$7$
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B
$8$
C
$5$
D
$6$

Explanation

x>0 true. x++ <10: post-inc returns 5 (true), x becomes 6. && both true. || short-circuits (no second x++). Then x+=1 makes x=7.

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