Before appearing to this interview I joined Sapient on July 2015. So, they asked me why I am switching so early ? Also I have changed My hometown recently. So also asked about the reason for that.
Senior Java Developer Interview Questions
5,535 senior java developer interview questions shared by candidates
Very basic questions asked
Stream API of java 1.8?
There was no technical question. He wasted my time.
He asked me about my projects.
Segregating a list of Strings on the basis of anagrams. (Leetcode)
All question in java 8- he literally asked all question Spring boot- annotations, profiles setting. Design patterns Hibernate
Round 2: Q1 : What is pointcut & jointcut in Spring AOP. Q2 : What are the difference between shallow copy vs deep copy in Java? Q3 : Write an program which demonstrate custom Runtime exception? Q4 : Find employee for each department whose birthday falls on current month? Employee (id, name, dob, dept_id) Department (dept_id, dept_name)
Mostly core Java and SQL. Collections Hierarchy Collections.synchronizedCollection(Collection ) HashMap versus Hashtable Equals and hashCode ArrayList versus vector ArrayList verus LinkedList Treemap versus treeset Iterators Concurrent Hashmap Executor Pool Thread framework. Hashmap internals. Why doesn't hashtable allowe null key? BlockingQueue Reentrant lock Read write lock Deadlock program. How to avoid deadlock Wait, notify program Wait versus sleep,Wait versus yield InteruptedException Illegal monitor exception Exceptions thrown by threads. Why are strings immutable Abstract class versus interace OOPS Overriding versus overloading Exception hierarchy User defined exception Class.forname Reflection Garbage collection. When is it called. PermGen EdenSpace Static Final Comparator, comparable. Array.sort Colelctions.sort Joins SQL functions, like date, char String builder versus String buffer Singleton Factory Abstract factory Observer Composite JSP architecture
Questions derived from question 1, how to deal with the problems encountered
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