Discussion
The program is compiled with javac Trial21.java - what is the result?
public class Trial21
{
static void log() { }
public static void main(String[] args)
{
assert false : log();
}
}
Answer: A
Expression2 is passed to an AssertionError constructor, so it must produce a value. A call to a void method produces none, and the compiler rejects it. Any non-void expression is acceptable, including an int, a String or an arbitrary object whose toString supplies the message.
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