Q. Random is a final class?

View solution

Q. What is the range of numbers returned by Math.random() method?

View solution

Q. How many bits are used for generating random numbers?

View solution

Q. What would be the output of following code snippet?

int a = random.nextInt(15) + 1;

View solution

Q. What would be the output of following code snippet?

int a = random.nextInt(7) + 4;

View solution

Q. Math.random() guarantees uniqueness?

View solution

Q. What is the signature of Math.random() method?

View solution

Q. Which of these class produce objects with respect to geographical locations?

View solution

Q. Which of these methods is not a Locale class?

View solution

Q. Which of these class can generate pseudorandom numbers?

View solution

Q. Which of these method of Locale class can be used to obtain country of operation?

View solution

Q. Which of these is a method can generate a boolean output?

View solution

Q. What is the use of Observable class?

View solution

Q. Which of these methods is used to notify observer the change in observed object?

View solution

Q. Which of these methods calls update() method?

View solution

Q. Which of these methods is called when observed object has changed?

View solution

Q. Which of these classes can schedule task for execution in future?

View solution

Q. Which of these interfaces is implemented by TimerTask class?

View solution

Q. Which of these package provides the ability to read and write in Zip format?

View solution

Q. Which of these packages contain all the collection classes?

View solution