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Top 10 questions asked by java developer in interview always.

Hello, guys let’s complete someone voice who want to share with you.
It’s dramatically better to search google that interview questions for java interview, but things are changing everyday questions are same but sometimes most likely people want the same things to listen through among others. 

So, coming to point and let you know about those questions that are asked generally.
1. Why do we use collections?
2. Why do we use ArrayList rather than vector?
3. What is the vector?
4. Why do we use hibernate?
5. Which frameworks of java you like most in java?
6. What are the benefits of using spring framework?
7. What are the projects that you are working?
8. What are the benefits of hibernate?
9. String Handling(String immutability, StringBuffer and  StringBuilder concepts).
10. How many ways we can create a thread?

These seven questions are randomly generated from the interviewer in most of the MNC.
So, prepared for java interview chapters like the collection on top the priority, exception handling and multithreading in Java and as well as spring framework, will let you know the questions by google.

Why do we need collections in Java?

As we all know that array, is the better choice for frequent operations like reading data, sorting data and deleting data, so why do we need collections rather than an array? Because array has the best choice for memory consumption and performance.

There are some points so that you can differentiate from collections:-

  1.  An array is the fixed size data structure. It means on run-time scenario if there will be a requirement to store more element in an array then the interpreter will be got runtime exception that ArrayIndexOutOfBoundsException. Hence, we can say arrays are not resizable.
  2. Java collections resolve array resizable features by ArrayList, LinkedList, Vector and many more.