wat is class level lock and object level lock
Answers were Sorted based on User's Feedback
Answer / ask
Class Lock - If a static method is marked as Synchrnozied
and called by a Thread, the whole Class will be locked
until the method execution completed.
Object Lock - If a non-static method is marked as
Synchronzied and called by a Thread, the current instance
(Object) will be locked util the method execution completed.
| Is This Answer Correct ? | 53 Yes | 5 No |
Answer / michael selvan
Class Lock - If a static method is marked as Synchrnozied
and called by a Thread, the whole Class will be locked
until the method execution completed.
Note : If we declare as a any static variables or methods
those will be stored in class area. So, if the method is
synchronized static . It'll lock the complete class.
| Is This Answer Correct ? | 4 Yes | 0 No |
class StringSample{
static void method1(){
System.out.println("classlevel...");
}
void method2(){
System.out.println("object level...");
}
}
public class StringDemo{
public static void main(String[] args) {
StringSample.method1(); // class level
// StringSample.method2(); //error
StringSample s2 = new StringSample();
s2.method2(); //object level
}
}
| Is This Answer Correct ? | 8 Yes | 18 No |
why java does not have operator overloading?
Explain restrictions for using anonymous inner classes?
java program that takes a 3 digit number n and finds out whether the number 2^n + 1 is prime, or if it is not prime find out its factors.
Can I uninstall java?
Is math class static in java?
What do you mean by default constructor in java?
Explain the difference between an Interface and an Abstract class?
Why hashset is used in java?
Is boolean a wrapper class in java?
Explain the importance of thread scheduler in java?
How many threads can java run?
we r taking <load-on-startup>0</load-on-startup> <load-on-startup>1</load-on-startup> in deployment descripter for loading servlets like serv1 N serv2? so 'll it take serv1 or serv2