What is the primitive type byte?
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What is nullpointerexception?
Explain the different forms of polymorphism?
How can constructor chaining be done by using the super keyword?
What are voids?
suppose in a class there is a code like this: { Set hs=new Hashset(); hs.add(new Emp("kathy",1000)); hs.add(new Emp("kathy",2000)); } how can u avoid the above code in your class as set won't allow duplicate objects?
If you are given the name of the function at run time how will you invoke the function?
List out five keywords related to exception handling ?
What about main() method in java ?
java program with complete 4 oops concepts implemented example
What is meant by null and void?
What ide should I use for java?
Is null a string in java?