How do you design microservices?
How to update value using threads. Write code?
What is thread safety? How do you achieve it?
What is thread safety?
How to traverse data in a linked list in forward and backward direction, write the algorithm?
Explain the internal working of a hash map?
Can the double-checked locking fail on a single processor system?
What is a concurrenthashmap?
What is an externalizable interface?
Explain the difference between hashset and hashmap?
What is the executor design pattern?
Do you know design patterns. List few?
What is csrf token and how will you add csrf token in ajax?
How to find length of an array in php ?
What is interface? Why it is used?