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Top 33 Hashmap Interview Questions in Java (+ Answers)

Top 33 Hashmap Interview Questions in Java Today we will discuss the Top 33 Hashmap Interview Questions in Java . In the earlier posts,  we had discussed Company-wise interview questions  IRIS Software Interview Questions in Java Kent CamEye Interview Questions in Java Fiserv Interview questions in Java NIIT Interview Questions in Java Let's see the Top 30 Hashmap Interview Questions in Java now...

NIIT Technologies Java Interview Questions for Experienced (3+)

NIIT Technologies Java Interview Questions for Experienced Today we will discuss NIIT Technologies Java Interview Questions for experienced developers having 3+ Years of Experience. In the earlier post, we had discussed  IRIS Software Interview Questions in Java ,  Kent CamEye Interview Questions in Java , and Fiserv Interview questions in Java .   Let's see the NIIT Java developer interview questions now... These questions are solely on the basis of the face-to-face interview given by people and collected thereafter. So let's get started... NIIT Java Interview Questions Face to Face Rounds      Core Java Interview Questions Write a program to print Fibonacci Series using recursion? What is the difference between hashtable and hashmap? How concurrency handles in the hashtable and hashmap? Is there any other alternative for concurrent collections in java?     Spring Interview Questions What is a Spring transaction? What is DI/IOC and what is the difference between constructor-ba

Fiserv interview questions in Java

Fiserv Interview Questions in Java Today we will discuss Fiserv Interview Questions in Java for experienced developers having 3+ Years of Experience. In the earlier post, we had discussed  IRIS Software Interview Questions in Java  and  Kent CamEye Interview Questions in Java .   Let's see the Fiserv Interview Questions now... These questions are solely on the basis of the telephonic interview given by people and collected thereafter. So let's get started... Fiserv Interview Questions Telephonic Rounds       Spring Boot Interview Questions What advantages does it provide? What is a spring initializer?         Core Java Interview Questions What is a race condition in java? What is the Deadlock condition in java and how to prevent it? We have a String s = ({)}(}) In this string we have to write logic to identify the missing opening or closing braces if any? We have a array = [12,25,-79,0,98,71], find the longest continuous array which have maximum sum.( Solution )     Hibernate I

Kent CamEye Interview Questions in Java

Kent CamEye Interview Questions in Java Today we will discuss Kent CamEye Interview Questions in Java for experienced developers having 3+ Years of Experience. In the earlier post, we had discussed  IRIS Software Interview Questions in Java . Let's see the Kent CamEye Interview Questions now... These questions are solely on the basis of the telephonic interview given by people and collected thereafter. So let's get started... Kent CamEye Interview Questions Telephonic Rounds       Spring Boot Interview Questions What advantages does it provide? what @SpringbootApplication annotation does?          Spring Interview Questions What is Spring bean and explain different bean scopes? If we create two different beans of type Singleton of the same class how spring will behave?     Core Java Interview Questions What is Try with resources in java? Do we need to provide catch and finally with a try with resources? What is the difference between Comparable and comparator and when to use wh

Iris Software Interview Questions in Java

Iris Software Interview Questions in Java Today we will discuss Iris Software Interview Questions in Java for experienced developers having 3+ Years of Experience. These questions are solely on the basis of the telephonic interview given by people and collected thereafter. So let's get started... Iris Software Interview Questions Telephonic Rounds       Spring Boot Interview Questions What are the advantages of Spring Boot over Spring? Which different Configuration files are used to define properties? Explain Spring boot Architecture and how it is different than the MVC application? What advantages does Spring boot provide over Spring MVC? How to create an API in Spring Boot Application?      System Design  How you will design APIs for Product flow in e-commerce sites? Hint: For Create Order, Update Order, Edit Order, Delete Order Which Type of APIs you will create Synchronous or Asynchronous and why? Can we do update the Call using GET Method if so then why use PUT? Difference be

LocalDateTime to Date Conversion in Java [2021]

LocalDateTime to Date Conversion in Java [2021]  In this tutorial, we will see how to Convert LocalDateTime to Date in Java. In the earlier tutorial, we have covered how we can  Convert LocalDateTime to LocalDate in Java  Here is the brief intro about what is LocalDateTime class in java. LocalDateTime LocalDateTime  is an instance of date-time without a time-zone in the ISO-8601 calendar system, such as 2017-12-03T10:15:30. LocalDateTime is an immutable date-time object that represents a date-time, often viewed as a year-month-day-hour-minute-second. To convert LocalDateTime to date, Date class added one method public static Date from(Instant instant) from 1.8 onwards. so to Convert our LocalDateTime instance to Date we have to first Convert LocalDateTime instance to Instant class object then only we can get Date from LocalDateTime. LocalDateTime to Date Conversion Here is the brief information regarding the method public static Date from(Instant instant) This method gets the instance