A Programmer[ap]s Guide to Java Certification

Which of the following is not a legal identifier?

Select the one correct answer.

1. a2z

2. dipus

3. 52pickup

4. _class

5. ca$h

6. total#

Which statement is true?

Select the one correct answer.

1. new and delete are keywords in the Java language.

2. try , catch , and thrown are keywords in the Java language.

3. static , unsigned , and long are keywords in the Java language.

4. exit , class , and while are keywords in the Java language.

5. return , goto , and default are keywords in the Java language.

6. for , while , and next are keywords in the Java language.

Is this a complete and legal comment?

/* // */

Select the one correct answer.

1. No, the block comment ( /* ... */) is not ended since the single-line comment ( // ... ) comments out the closing part.

2. It is a completely valid comment. The // part is ignored by the compiler.

3. This combination of comments is illegal and the compiler will reject it.