FICO Interview Questions
Collection of FICO Interview Questions. The section contains a real-time interview experience shared by the interviewees.
Technical Round
What is the default package in java?
Why we use interface why not abstract class?
What if we implement the same method in the interface and abstract.
What are inner classes? Name them?
In public static void main(String arr[])… what if we replace public with private, remove static, replace void with string?
hash map we have (key and value ) pair, can we store inside a value =(key, value ) again ??
What is variable scope in java (in class, in method, in static block)
What are the oops concepts? Explain them each with real-world examples
Write a program so that whenever you create an object, you get to know how many objects you have created?
What are singleton classes?
What is difference between .equals() , (==) and compare-to();
Difference between hash code and equals?
Write a program to get substring of string ex: java is good so result: avais.
Write a program to reverse the string
Program for binary search
What is the use of the package?
Why we use interface and abstract?
We have 2 interfaces both have the print method, in my class, I have implemented the print method, how you will get to know that I have implemented the first interface and how you will use it.
What is the difference between the vector list and ArrayList
Difference between hashmap and hash table, what is synchronization, how it is achieved?
Use of the collection, when we use it?
What is the priority queue in the collection, what is the use, how you have use in your project?
When to use hashmap and hashtable?
Where you have used the concept of interface and abstract in your framework?
Check more questions on Java, Selenium, Database, API and Manual testing.
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