Compound Boolean Expressions

AP Computer Science A· difficulty 4/5

public static int eval() {
    int a = 0;
    int b = 0;
    boolean t = (a++ > 0) && (b++ > 0);
    return a * 10 + b;
}
// Call: System.out.println(eval());

What is printed?

A
$11$
B
$0$
C
$1$
D
$10$
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Explanation

a++ returns 0 (not >0); a becomes 1. && short-circuits so b++ never runs. b=0. Result 1*10+0 = 10.

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