This topic includes most frequently asked core java interview questions.
1. What is difference between arraylist and vector in JAVA?
2. Explain final keyword in JAVA
3. What is difference between Interface and Abstract Class in JAVA?
4. What is difference between Constructor and Method in JAVA?
5. Explain Method Overloading and Method Overriding in JAVA
6. What is the difference between String and StringBuffer Class in JAVA?
7. What is complexity of Get operation in HashMap?
8. What are the access modifiers in JAVA
9. Explain static keyword in JAVA
10. What is difference between HashTable and HashMap
11. What is object Serialization