1) Spring securiy, jwt, SSO in brief. 2) HashMap in Brief. 3) what is String 4) How create Immutable class 5)Diff between java 6,7 and 8 6) example of java 8 Stream API
Senior Software Engineer Senior Java Developer Interview Questions
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General discussion about microservices & DB
Why String Immutable in java
Segregating a list of Strings on the basis of anagrams. (Leetcode)
He asked me about my projects.
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 about the skills in my resume.
On the spot coding exam
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)
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