Design instagram clone system and calculate some numbers.
Senior Java Software Engineer Interview Questions
377 senior java software engineer interview questions shared by candidates
Game: Initially starting with 1 Two Steps 1.Increment the number by 1, x = x + 1 2.Double the number , x = x * 2 Step 2 can be used atmost maxStepTwoTimes Find the minimum number of steps to reach a number N Example N=19 maxStepTwoTimes=2 Increment 1 ,3 times ,result into 4 Double 4 ,becomes 8 Increment by 1, becomes 9 Double 9 ,becomes 18 Increment by 1 , becomes 19 total Steps 7 NOTE: This is almost same as "Number Line Jumps" in hanckerrank. I wrote code , initially it has some bugs. I modified it .But he is not satisified with my code.
-describe Spring MVC mechanism -how Spring REST finds out which controller to invoke -how to scale application, DB -how Hibernate works -what is problem with try-catch block
whether source string contains pattern string?
Java - Algorithms coding
OOPs concepts, Threads, Collections, Exceptions
Segregating a list of Strings on the basis of anagrams. (Leetcode)
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
PM round was unexpected and question he asked like release management , process management
Given a sorted array of integers, write a method to remove the duplicates. Do not use any classes from the java.util package, or the equivalent library for your language.
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