Is namespace same as package in java?
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What is the difference between static and global variables and also define what are volatile variables?
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What flag up means?
What is garbage collector?
What is the purpose of file class?
What are other modifiers?
int a=10,b=20,c=30 a= b+c;b=a+c;c=a+b; System.out.println("The value is"+a+b+c;
What happens if we don’t define serial version uid?
When should I use singleton?
4.1 Supply contracts (in the form of comments specifying pre- and post conditions) for the enqueue() method of the LinkedQueue class given in the Appendix. (2) 4.2 Let Thing be a class which is capable of cloning objects, and consider the code fragment: Thing thing1 = new Thing(); //(1) Thing thing2 = thing1; //(2) Thing thing3 = (Thing) thing1.clone(); //(3) Explain how the objects thing2 and thing3 differ from each other after execution of the statements. (
Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?
How many types of packages are there in Java?
What is a protected class in java?