Please answer this confusion.

Question

In SCJP exam, if we see a question like below without main method, what to answer? For ex, this below example cannt be compiled.
String foo = "blue";
Boolean[] bar = new Boolean[1];
if (bar[0]) {
foo = "green";
but if you add main method, it will compile fine, only runtime exception will be thrown.
public class C {
public static void main(String[] args) {
String foo = "blue";
Boolean[] bar = new Boolean[1];
if (bar[0]) {
foo = "green";
So, what to answer? Code cannot compile or exception is thrown??? Thanks.

Answer 1

. . . but when it's not present, you can assume
it's there . . .Could you explain that a little further?
String foo = "blue";
Boolean[] bar = new Boolean[1];
if (bar[0]) {
foo = "green";
}By itself, the above cannot compile (even if there are no syntax errors in that code itself) because there's no surrounding class Blah { ... }. But if the question is something like "What happens with the above code? a) doesn't compile, b) runtime exception, ... etc. ..." I would assume that "doesn't compile" applies only if there's a syntax error in that code. I don't think they're testing to see if you recognize that you need the class declaration. They just ommitted to avoid clutter (is my guess).