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Java Lead Interview Questions
597 java lead interview questions shared by candidates
Ques : Write a pgm for prime numbers , and find a dupplicate numbers in a sorted list. Ques : Write a immutable object with date object . Ques : What is reentrant lock? Ques :Coding question asked to do in second round: Below are the given coordinates of points on graph .{1,0},{2,0},{3,0},{-1,0},{0,2},{-2,0} Find all the points that are at second farthest distance from center i.e. {0,0} ? Answer for above input {0,2},{2,0},{-2,0} Formula to get distance from center is d2=x2+y2
1. System Design Youtube 2. Microservice communication (in depth) 3. Java Stream API 4. Handle duplicate call
They focused mainly on scalable Java backend architecture, microservices design, concurrency handling, performance optimization, system design decisions, and experience leading development teams in production environments.
Do you know multithreading in Java?
How to do profiling in spring boot application for prod and debug environments ? What is the use of @SpringbootApplication annotation
What is recursion in java?
Questionnaire sur https://www.codingame.com (questions sur l'orientée objet, Java, Spring, SQL, Javascript, Linux et sécurité)
1. Solid principles 2. Singleton pattern, in case if we pass hashmap- map can be altered and it will destroy singleton, how to handle that 3. How to create threads 4. How to execute 10 threads at a time 5. How to create global exception class 6. When to use arraylist and linkedlist 7. Completable in java 8 8. What's changed in hashmap in java 8 9. Deep copying and shallow copying 10. Use of volatile keyword in java 11. Programming a. String ="I love programming" -we need to count the length and arrange it in desc but that should be return as string using stream api b. List in = Arrays.asList(1,3,7,0,6,7,8,0); need to sort this and put only 0 at first and let the remaining stay as it is using stream API
find an element in the aray and if it is not found , return the element just greater than the element we are trying to search.
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