Discussion
Which line will cause a compilation error?
public class Sample95
{
static boolean isReady() { return true; }
public static void main(String[] args)
{
assert isReady;
System.out.println("ready");
}
}
Answer: C
The parentheses are missing, so this names a variable rather than calling the method, and no variable called isReady exists. The compiler reports that it cannot find the symbol. Adding the parentheses makes it a boolean-valued call and the assertion compiles.
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