Explain hashset and its features?
What are the differences between string, stringbuffer and stringbuilder?
How does Vector implement synchronization?
What is floating data type?
What are disadvantages of java?
How does static modifier work?
How do you sort in ascending order in java?
Is there any limitation of using inheritance?
What is the use of a copy constructor?
Can we overload run() method in java?
What is unicode full form?
What will happen if static modifier is removed from the signature of the main method?
which one is more efficient int x; 1. if(x==null) 2.if(null==x) state which one either 1 or 2?