Data structures and SQL
Senior Java Engineer Interview Questions
636 senior java engineer interview questions shared by candidates
Give a general overview of the Java memory model.
HashMap details
1. What is runtime polymorphism? Can you explain by writing and example ? 2. Developer d = new Employee(); Here employee is a super class and Developer is a subclass. If we can d.work(); which method will be executed? 3. Can we overload static methods ? 4. In the below array, move all the 0 to left and don't sort the remaining values: 3, 23,0,4,6,0,33,0,34 5. Reverse each string in the word and don't move the punctuations: "Hello, This is a String!" 6. What does a collision happen in Hashmap ? 7. What are different ways to create Thread ?? 8. What is the difference between synchronized block and synchronised method ?? Which is better with respect to performance? 9. If we have static block, a constructer and main method. What is the order of execution? 10. What are the design patterns that you have used in your project? 11. Can you write a program to display singleton design patterns? 12. What are the solid principles?
Implement Doubly Linked List.
What are you looking for in a job?
in TR following ques asked: what is oop, encapsulation implement abstraction. then given codes to run in eclipse: 1.given a string print character followed by its frequency. 2. find max n min in given array 3. write table of 5 without loop
Spring boot architecture
How Do you implement observer design pattern? Which design patterns do you know? Which are the collections interfaces? Given the fibonacci sequence array, sort the array with all the odd numbers at the begining and the non even numbers at the end. Don’t use any temp array.
What is the microservice architecture used for deploying the same services in two different regions
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