What are design patterns and please explain?
What are 4 pillers of object orinted programming?
What do you mean by an object in java?
Justify your answer that you can't define a method inside another method in java, if you can then how?
Differentiate between array list and vector in java.
What is outofmemoryerror in java?
What do you understand by classes in java?
Why do we create public static method in java?
Why we do exception handling in java and how many types of exceptions are there?
What is operator overloading. Is it is supported in java?
What is the difference between jdk, jre, and jvm?
What is difference between equals and hashcode method?
What is the purpose of final keyword and when to use it?
What is difference overloading and overriding?
What is difference between throw and throws ?