Technical Interview Question:
- What are the oops concepts?
- What is polymorphism and what are the types of polymorphism
- Write code for compile-time and runtime polymorphism.
- What are singleton classes and the factory method?
- What is Exception and Explain Exception Hierarchy?
- What are throwable keywords and some questions related to try catch syntax?
- What is a volatile keyword?
- What is the difference between interface and abstract classes?
- What is Functional Interface
- What is JUnit
- Difference between Hashmap and ArrayList?
- Write code to add remove element from hashmap?
- Can we override possible in the same class?
- How many data structures did you familiar with?
- What is binary search ? Write a program to implement binary search?
- What is the time complexity of quicksort?
- How many types of collections is tier?
- What is stack ? give implementation of stack?
- Write a program to convert given input element n array [1,1,0,1] to [0,0,1,0] ?
- Write program to display numbers which are not in array suppose array size is 10;
- for example a={3,6,8,9};
output a={1,2,4,5,7,10}; - What are types for implementing thread in java?
- Write a program to Reverse a String?
- WAP to take input as jay2 and output jayjay?
Tips:
- Clear all basics concept related to class abstract a class, interface, and data structure.