Hi Friends, I am beginner in java. what i know about
synchonized keyword is,If more that one 1 thread tries to
access a particular resource we can lock the method using
synchronized keyword. Then after that how the lock is
released and how next thread access that.Please explain with
example.
Answers were Sorted based on User's Feedback
Answer / ejp
The lock is released when the holding thread exits the
synchronized block.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / ejp
Throwing the exception exits the synchronized{} block so
that answer doesn't actually add anything.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / ravikiran
The lock will be released & allocation depends on the scheduler
| Is This Answer Correct ? | 0 Yes | 3 No |
What is the difference between interface & abstract class?
What are exception handling keywords in java?
What is the common usage of serialization?
In the first round, there are 30 aptitude and 30 java questions. We are suppose to finish both the papers within 60 minutes. I cleared this round. Next was test for programming skills. In this section, Some 7 n's were asked. 1. What is the difference b/w sleep(1000) and wait(1000) 2. what is the diff b/w static block and static function? 3. Write a program to validate IP address using string tokenizer. 4. Write a program to create singleton class 5. write a function to reverse the string 6. Write a prog to print prime nos upto n. EX: If n=9, It shld print 1,2,3,5,7 7. One program on collections- Write a program to print no. of times a number is repeating in an array. EX- {1,3,1,2,5,7,3,7,34,3,8,3} It should print: 1- 2 times 3- 4 times and so on 7. Write a func to print fibonocci series After this I had technical interview, which went on for. 60 mins or so. There were qn's about multi threading, Exception handling and collection classes. Knowledge about collections was very important for the post I was interviewed for.
What do you know about the garbage collector?
Which class represents the socket that both the client and server use to communicate with each other?
What is structure of java heap? What is perm gen space in heap?
Can we define package statement after import statement in java?
What are "class access modifiers" in Java?
What is the java project architecture?
What are blocks?.
What is constructor chaining in java?