JuniorTheoryCommon

What does the program print?

JAVA

public class Main {
    public static void main(String[] args) {
        int x = 0;
        boolean big = x != 0 && 10 / x > 1;
        System.out.println(big);
    }
}

false

Expecting an ArithmeticException: && evaluates left to right and skips the right side once the left is false, so 10 / x never runs.
Expecting a compile error: the compiler does not follow the value of x; a division by a variable compiles, and only a run could fail.

What changes if the two sides of && are swapped?
When does || skip its right side?

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JuniorTheoryCommon

What does the program print?

JAVA

public class Main {
    public static void main(String[] args) {
        int x = 0;
        boolean big = x != 0 && 10 / x > 1;
        System.out.println(big);
    }
}

false

Expecting an ArithmeticException: && evaluates left to right and skips the right side once the left is false, so 10 / x never runs.
Expecting a compile error: the compiler does not follow the value of x; a division by a variable compiles, and only a run could fail.

What changes if the two sides of && are swapped?
When does || skip its right side?

Back to questions Open topic in roadmap →Answer it yourself — Quiz