Discussion
Which line will cause a compilation error?
public class Sample02
{
static void audit() { }
public static void main(String[] args)
{
int total = 0;
assert total >= 0 : audit();
System.out.println(total);
}
}
Answer: B
The value of Expression2 is handed to an AssertionError constructor, so it must produce a value. A call to a void method produces none and the compiler rejects it. Declaring audit() as void is legal on its own; using its result as a detail message is not. Any non-void expression would be accepted.
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