Core Java Interview Questions and Answers
Question: Which characters may be used as the second character of an identifier,but not as the first character of an identifier?Answer: The digits 0 through 9 may not be used as the first character of an identifier but they may be used after the first character of an identifier. |
Is it helpful?
Yes
No
Most helpful rated by users:
- How could Java classes direct program messages to the system console, but error messages, say to a file?
- What are the differences between an interface and an abstract class?
- Why would you use a synchronized block vs. synchronized method?
- How can you force garbage collection?
- What are the differences between the methods sleep() and wait()?