Java Lead Interview Questions

595 java lead interview questions shared by candidates

Phone screening: modelling - describe class, interfaces and other java-stuffs required to model a Bike with breaks, wheels, tyres, spokes and frames. On modelling, asked follow-up qs like how to make tri-cycle, how to identify front, back wheels etc.
avatar

Lead Java Engineer

Interviewed at PA Media Group

3.2
Mar 13, 2013

Phone screening: modelling - describe class, interfaces and other java-stuffs required to model a Bike with breaks, wheels, tyres, spokes and frames. On modelling, asked follow-up qs like how to make tri-cycle, how to identify front, back wheels etc.

1. Asked very basic questions on OOPS - (you need to be very good at basics). 2.project architecture 3.Spring IOC/DI 4. Was asked about Design patterns and why did i chose those while i used them. 5.and following questions on design patterns 6. adapter design pattern. etc. Bas
avatar

JAVA Developer/Lead

Interviewed at CitiusTech

3.7
Nov 5, 2019

1. Asked very basic questions on OOPS - (you need to be very good at basics). 2.project architecture 3.Spring IOC/DI 4. Was asked about Design patterns and why did i chose those while i used them. 5.and following questions on design patterns 6. adapter design pattern. etc. Bas

First Round: OOPS Concept in details Working of Hashmap Working of Linkedlist Difference between ArrayList and LinkedList Difference between Abstract class and interface. Scopes in Spring AutoWire in Spring , ways to achieve. Dependency Injection. Beans in Dependency Injection. Null value in Hashmap. Query for top 5 employee having highest salary. SOAP and RestFull Service difference. How to achieve security in RestFull Service. Hibernate object states. If there is a detached state how can it be reuse. What protocol soap and rest use. Exception Hierarchy . Hibernate Save, persist and Merge. Second Round: What is synchronized keyword and its uses. Which one is fast JSP or servlet. Types of auto wiring and difference. Used any Performance management tool? If we want any query param to be required , how can we achieve it? What is MVC? (There were more questions, but currently I forgot). Third Round: Composition and aggregation Hashmap working Custom key object Optional class List of states in sorted order with Maharashtra on top Parallel stream. Can we catch error how ? How two web-service communicate each other DI Cyclic dependency. Auth, authentication, authorization Method override for different exceptions in parent and sub class (There were more questions, but currently I forgot).
avatar

Technical Lead - Java

Interviewed at Wipro

3.6
Dec 6, 2018

First Round: OOPS Concept in details Working of Hashmap Working of Linkedlist Difference between ArrayList and LinkedList Difference between Abstract class and interface. Scopes in Spring AutoWire in Spring , ways to achieve. Dependency Injection. Beans in Dependency Injection. Null value in Hashmap. Query for top 5 employee having highest salary. SOAP and RestFull Service difference. How to achieve security in RestFull Service. Hibernate object states. If there is a detached state how can it be reuse. What protocol soap and rest use. Exception Hierarchy . Hibernate Save, persist and Merge. Second Round: What is synchronized keyword and its uses. Which one is fast JSP or servlet. Types of auto wiring and difference. Used any Performance management tool? If we want any query param to be required , how can we achieve it? What is MVC? (There were more questions, but currently I forgot). Third Round: Composition and aggregation Hashmap working Custom key object Optional class List of states in sorted order with Maharashtra on top Parallel stream. Can we catch error how ? How two web-service communicate each other DI Cyclic dependency. Auth, authentication, authorization Method override for different exceptions in parent and sub class (There were more questions, but currently I forgot).

Viewing 111 - 120 interview questions

Glassdoor has 595 interview questions and reports from Java lead interviews. Prepare for your interview. Get hired. Love your job.