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Java 8 Programming Interview Questions and Answers

Top 100 Java Programs For Beginners

Thread pool in Java with Example

Thread pool in Java with Example

ReentrantLock in Java with Example

ReentrantLock in Java with Example

Green thread and Native thread in Java

Green thread and Native thread in Java

Monolithic Vs MicroService Architecture

Monolithic Vs MicroServices Architecture

how to configure kafka

How to Configure Kafka

How to filter data from nested list using Stream Java 8

How to filter data from nested list using Stream Java 8

How to convert List of Lists into List using Java 8

How to convert List of Lists into List using Java 8

How to get pod details in Kubernetes

How to get pod details in Kubernetes

How to check remaining space in Linux

How to check remaining space in Linux

how to check logs in kubernetes

How to check pod logs in Kubernetes

Different between ls and pwd command

Different between ls and pwd command

How to install redis in openshift

How to install Redis on OpenShift

How to Delete a Pod in Kubernetes

How to delete pod in Kubernetes

Unable to resolve the current Docker CLI context "default": context "default": context not found

Unable to resolve the current Docker CLI context “default”: context “default”:...

How to push docker image to docker hub using git bash

How to push docker image to docker hub using git bash

Azure Status 401 Unauthorized container registry

Azure Status 401 Unauthorized container registry

How to deploy Spring Boot application using Docker

How to deploy Spring Boot application using Docker

Failed to execute goal org.springframework.boot spring-boot-maven-plugin RELEASE repackage failed

Failed to execute goal org.springframework.boot spring-boot-maven-plugin RELEASE repackage failed

java.lang.IllegalStateException: No instances available for localhost

java.lang.IllegalStateException: No instances available for localhost

com.sun.jersey.api.client.ClientHandlerException:java.net.ConnectException:Connection refused

com.sun.jersey.api.client.ClientHandlerException:java.net.Connect Exception

Java.lang.classnotfoundexception org.apache.avro.data.timeconversions

Java.lang.classnotfoundexception org.apache.avro.data.timeconversions

@PostConstruct and @PreDestroy

@Postconstruct and @Predestroy

Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured

Failed to configure a DataSource url attribute is not specified and...

Java Stream map() Vs flatMap()

Java Stream map() Vs flatMap()

Java Stream flatMap()

Java Stream flatMap()

Find duplicate characters and number of times of duplicity using Java 8

Find duplicate characters and number of times of duplicity using Java...

Java Stream allMatch()

Java Stream allMatch()

Java Stream findFirst()

Java Stream findFirst()

Stateful vs Stateless Streaming Java

Stateful vs Stateless Streaming Java

Java 8 Stream distinct()

Java 8 Stream distinct()

Java 8 Stream sorted()

Java 8 Stream sorted()

Java Stream min() and max() examples

Java Stream min() and max()

Java 8 Stream forEach()

Java 8 Stream forEach()

How to filter a map with Java stream

How to filter a map with Java stream

How to Construct a new Map using List of Maps using Java 8 streams

How to Construct a new Map using List of Maps using...

Java 8 example to Collect stream into a HashMap with Lambda

Java 8 example to Collect stream into a HashMap with Lambda

Java 8 Stream map() Examples

Java 8 Stream map() Examples

Java 8 Stream filter() examples

Java 8 Stream filter() examples

Java Stream filter() vs map()

Java Stream filter() vs map()

Java 8 Method Reference Examples

Java 8 Method Reference Examples

Java 8 Function interface Examples

Java 8 Function interface Examples

Java 8 Collection vs Stream

Java 8 Collection vs Stream

Java 8 static methods examples

Java 8 static methods examples

Java 8 default methods examples

Java 8 default methods examples

Java 8 Consumer Examples

Java 8 Consumer Examples

Java 8 Predicate examples

Java 8 Predicate examples

Java 8 Supplier Examples

Java 8 Supplier Examples

Difference between Anonymous Inner Class and Lambda Expression

Difference between Anonymous Inner Class and Lambda Expression

Java 8 Comparator comparing() example

Java 8 Comparator comparing() example

Why String is immutable in Java

Why String is immutable in Java

Java 8 Lambda Expressions Examples

Java 8 Lambda Expressions Examples

Write a program to find the nth Highest Salary using Java 8

Write a program to find the nth Highest Salary using Java...

Java 8 Functional Interface Examples

Java 8 Functional Interface Examples

Bodmas program in Java

Bodmas program in Java

Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 1000 byte

Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 1000...

Benefits of implementing Serializable interface while defining entity in JPA

Benefits of implementing Serializable interface while defining entity in JPA

CollectionUtils subtract() Example in Java

CollectionUtils subtract() Example in Java

JsonNode astext() Example in Java

JsonNode astext() Example in Java

How to check String contains a substring in Java

How to check String contains a substring in Java

How to read JSON from a URL in Java with example

How to read JSON from a URL in Java with example

Properties class in Java with example

Properties class in Java with example

CollectionUtils isSubCollection() Example in Java

CollectionUtils isSubCollection() Example in Java

StringUtils wrap() Example in Java

StringUtils wrap() Example in Java

StringUtils stripEnd() Example in Java

StringUtils stripEnd() Example in Java

StringUtils abbreviate() example in Java

StringUtils abbreviate() example in Java

CollectionUtils filter() Example in Java

CollectionUtils filter() Example in Java

@Component not working in Spring Boot

@Component not working in Spring Boot

Spring Boot @Value not working

Spring Boot @Value not working

Spring Boot @Value annotation example

Spring Boot @Value annotation example

How to remove first word from String in Java

How to remove first word from String in Java

How to use @Where annotation in Hibernate

How to use @Where annotation in Hibernate

How to check two entities are equal in JPA

How to check two entities are equal in JPA

How to create an entity using Spring Data JPA

How to create an entity using Spring Data JPA

StringUtils trimToNull() Example in Java

StringUtils trimToNull() Example in Java

StringUtils substringBefore() Example in Java

StringUtils substringBefore() Example in Java

StringUtils substringAfter() Example in Java

StringUtils substringAfter() Example in Java

StringUtils capitalize() example in Java

StringUtils capitalize() example in Java

CollectionUtils disjunction() Example in Javav

CollectionUtils disjunction() Example in Java

CollectionUtils containsAll() Example in Java

CollectionUtils containsAll() Example in Java

CollectionUtils containsAny() Example in Java

CollectionUtils containsAny() Example in Java

CollectionUtils collect() Example in Java

CollectionUtils collect() Example in Java

CollectionUtils emptyCollection() Example in Java

CollectionUtils emptyCollection() Example in Java

CollectionUtils permutations() Example in Java

CollectionUtils permutations() Example in Java

CollectionUtils retainAll() Example in Java

CollectionUtils retainAll() Example in Java

CollectionUtils reverseArray() Example in Java

CollectionUtils reverseArray() Example in Java

CollectionUtils select() Example in Java

CollectionUtils select() Example in Java

CollectionUtils removeAll() Example in Java

CollectionUtils removeAll() Example in Java

StringUtils startsWith() example in Java

StringUtils startsWith() example in Java

StringUtils isAsciiPrintable() example in Java

StringUtils isAsciiPrintable () example in Java

StringUtils isWhitespace() example in Java

StringUtils isWhitespace() example in Java

StringUtils isNumeric() example in Java

StringUtils isNumeric() example in Java

StringUtils isAlpha() example in Java

StringUtils isAlpha() example in Java

How to send post body using restTemplate as x-www-form-urlencoded

How to send post body using restTemplate as x-www-form-urlencoded

Spring Batch Scheduler Example using Spring Boot

Spring Batch Scheduler Example using Spring Boot

Spring Batch Example to read Data from the Database and write to Excel

Spring Batch Example to read Data from the Database and write...

How to upload CSV file to oracle database using Spring Batch

How to upload CSV file to oracle database using Spring Batch

Java.lang.IllegalStateException Ambiguous mapping Cannot map Controller method

Java.lang.IllegalStateException Ambiguous mapping Cannot map Controller method

What is Hibernate

What is Hibernate

CollectionUtils union() Example in Java

CollectionUtils union() Example in Java

CollectionUtils intersection() Example in Java

CollectionUtils intersection() Example in Java

CollectionUtils isEqualCollection() Example in Java

CollectionUtils isEqualCollection() Example in Java

How does String compareTo() method work in Java

How does String compareTo() method work in Java

Hibernate one to one unidirectional with MySQL and Spring Boot

Hibernate one to one unidirectional with MySQL and Spring Boot

Hibernate Interview Questions And Answers

Hibernate Interview Questions And Answers

Spring Batch ValidatingItemProcessor Example

How to send Cookie in MockHttpServletRequest

How to update an entity using Spring Data JPA

How Spring Boot loads properties or yml or yaml file

How Spring Boot loads properties or yml or yaml file

Spring Data JPA Distinct example

Error creating bean with name entityManagerFactory defined in class path resource...

Spring Data JPA Not Null

java.lang.IllegalArgumentException Could not resolve placeholder

java.lang.IllegalArgumentException Could not resolve placeholder

How to Split String in Java

How to Split String in Java

No Property Found for Type

No Property Found for Type

How to post json data using Curl

How to post json data using Curl

Consider defining a bean of type in your configuration

Consider defining a bean of type in your configuration

Spring Boot Get Cookie From Request

Spring Boot Get Cookie From Request

Spring Batch ItemProcessor Example

Spring Batch ItemProcessor Example

AsyncItemProcessor Spring Batch Example

AsyncItemProcessor Spring Batch Example

CompositeItemProcessor Spring Batch Example

Spring Batch ItemReader Example

Spring Batch ItemReader Example

How to Debug Spring Boot Application using Intellij

How to Debug Spring Boot Application using Intellij

Spring jdbctemplate example with spring boot

Spring jdbctemplate example with spring boot

JpaPagingItemReader Example

JpaPagingItemReader Example

JdbcPagingItemReader spring batch example

JdbcPagingItemReader spring batch example

StaxEventItemReader Example

StaxEventItemReader Example

JsonItemReader spring batch example

JsonItemReader Spring Batch Example

JdbcCursorItemReader Spring Batch Example

JdbcCursorItemReader Spring Batch Example

Spring Batch FlatFileItemReader Example

Access to dialectresolutioninfo cannot be null when ‘hibernate.dialect’ not set

Access to dialectresolutioninfo cannot be null when ‘hibernate.dialect’ not set

How to configure multiple datasource in spring boot using tomcat

How to configure multiple datasource in spring boot

Tomcat JNDI Datasource configuration

Tomcat JNDI Datasource configuration

Not a managed type entity spring boot

Not a managed type entity spring boot

spring batch storedprocedureitemreader example

StoredProcedureItemReader example

N+1 problem in Hibernate

N+1 problem in Hibernate

Dirty checking in Hibernate

Dirty Checking in Hibernate

How to create custom Order in Hibernate

How to create custom Order in Hibernate

Hibernate Query Language example

Hibernate Query Language example

Difference between save() and persist() in Hibernate

Difference between save() and persist() in Hibernate

difference between get and load in hibernate

Difference Between get() and load() in Hibernate

Spring Boot Redis Cache Example

Spring Boot Redis Cache Example

JPA CriteriaBuilder example

JPA CriteriaBuilder example

orika mapper example

Orika Mapper Example

Spring Boot JMS ActiveMQ Producer and Consumer Example

Spring Boot JMS ActiveMQ Producer and Consumer Example

Spring Boot Kafka Producer and Consumer Example from scratch

Spring Boot Kafka Producer and Consumer Example – Step By Step...

Spring Boot AWS SQS Listener Example

Spring Boot AWS SQS Listener Example

How to create users and groups in AWS

How to create SQS queue in AWS

How to create free Amazon AWS Account

How to create free Amazon AWS Account

Get Session From EntityManager in Spring Boot

Get Session From EntityManager in Spring Boot

Spring Boot CRUD Example With MySQL

Spring Boot CRUD Example With MySQL/PostgreSQL

Hazelcast Cache Spring Boot Example

Hazelcast Cache Spring Boot Example

How to get ApplicationContext in Spring Boot

How to convert List to comma separated String in Java

How to convert List to comma separated String in Java

StringUtils join() Example in Java

StringUtils join() Example in Java

Spring data jpa modifying exmaple

Spring Data JPA @Modifying Annotation Example

CollectionUtils isEmpty() Example in Java

CollectionUtils isEmpty() Example in Java

StringUtils isEmpty() and IsBlank() Example in Java

hibernate-jpa-ehcache-example

Hibernate/JPA EhCache Configuration Example

OneToMany Mapping using @JoinTable in Hibernate/JPA

OneToMany Mapping using @JoinTable in Hibernate/JPA

@OneToMany orphanRemoval true example in Hibernate/JPA

@OneToMany orphanRemoval true example in Hibernate/JPA

how to get JPA EntityManager in Spring Boot

How to get JPA EntityManager in Spring Boot

JPA CascadeType MERGE example using Spring Boot

Hibernate Lazy vs Eager loading Example

Hibernate Lazy vs Eager loading Example

JPA and Hibernate Cascade Types example with Spring Boot

JPA and Hibernate Cascade Types example with Spring Boot

Failed to lazily initialize a collection of role could not initialize...

JPA EntityManager persist() and merge() method.

@ElementCollection Example in Hibernate/JPA Using Spring Boot

@ElementCollection Example in Hibernate/JPA Using Spring Boot

JPA EntityManager CRUD example Using Spring Boot

JPA EntityManager CRUD example Using Spring Boot

JPA EntityManager remove() example Using Spring Boot

Hibernate First Level Cache example

Hibernate First Level Cache example using Spring Boot

JPA EntityManager persist() method Example

JPA EntityManager find() method

How to write custom method in repository in Spring Data JPA

How to create a custom repository in Spring Data JPA

Sorting And Pagination in Spring Data JPA

Spring Data JPA Interview Questions and Answers

Spring Data JPA @NamedNativeQuery

Spring Data JPA @NamedNativeQuery

Spring Data JPA @NamedQuery

Spring Data JPA @Query Annotation

Spring Data JPA Named Parameters

Define multiple Rest API with the same name

Spring Data JPA JPQL and Native Query Example

Difference between Repository and CrudRepository

CrudRepository Methods Example

Difference between CrudRepository and JpaRepository in Spring Data JPA

Spring Data JPA Nested Property Query Method

Spring Data JPA Projection Example

Spring Data JPA Query Methods/Repository Methods

@Min And @Max Javax Validation Hibernate Example

@Min And @Max Javax Validation Hibernate Example

Spring Data JPA StartingWith And EndingWith Example

Spring Data JPA Is and Equals Example

Spring Data JPA In and NotIn Example

Spring Data JPA between Example

Spring Data JPA And Or Example Using Spring Boot

Spring Data JPA Not Example

Spring Data JPA contains ignorecase Example

Spring Data JPA Like and Containing Example

Spring Data JPA greater than Example

Spring Data JPA less than Example

Spring Data JPA IsNull Example Using Spring Boot

@Transactional timeout Using Spring Boot

Spring Data Case Insensitive Search Example

Spring Data findById() Vs getOne()

Spring Data JPA JpaRepository getOne()

Spring Data JPA delete() vs deleteInBatch()

Spring Data JPA deleteAll() Vs deleteAllInBatch()

Spring Data JPA JpaRepository deleteAllInBatch()

Spring Data JPA deleteInBatch() Example

Spring Data JPA JpaRepository saveAndFlush() Example

Spring Data JPA CrudRepository count() Example

Spring Data JPA CrudRepository delete() and deleteAll()

Spring Data JPA CrudRepository deleteById() Example

CrudRepository findAllById() Example Using Spring Boot

How to Sort ArrayList in Descending Order in Java

How to Sort ArrayList in Descending Order in Java

Spring Data CrudRepository existsById()

Spring Data JPA CrudRepository findById()

@Digits Javax Validation Hibernate Spring Boot Example

@Digits Javax Validation Hibernate Spring Boot Example

Hibernate Query Language example

Sorting in Hibernate using HQL

Spring Data CrudRepository saveAll() and findAll()

Sorting in Hibernate

Sorting in Spring Data JPA using Spring Boot

@OrderBy Annotation in Hibernate for Sorting

How to sort using Criteria in Hibernate

Spring Data CrudRepository save() Method

@Version Annotation Example In Hibernate

Hibernate Validator Constraints Example Using Spring Boot

Hibernate Table Per Concrete Class Spring Boot

Hibernate Table Per Subclass Inheritance Spring Boot

Hibernate Single Table Inheritance using Spring Boot

Many To Many Mapping In Hibernate/JPA Using Spring Boot And Oracle

One To Many Bidirectional Mapping In Hibernate/JPA Annotation Example Using Spring...

Many To One Unidirectional Mapping In Hibernate/JPA Annotation Example Using Spring...

@Temporal Annotation Example In Hibernate/Jpa Using Spring Boot

@ControllerAdvice Global Error Handling Example in Spring Boot

@ExceptionHandler Example in Spring Boot

How To Load Sql Script On Application Startup Using H2 Database

One To Many Mapping Annotation Example In Hibernate/JPA Using Spring Boot...

Junit Test Cases For Exception Example In Java

One to One Bidirectional Mapping Example In Hibernate/JPA Using Spring Boot...

One to One Mapping in Hibernate/JPA using Spring Boot and Oracle

Synchronization In Java With Example

Synchronization In Java With Example

Difference between sleep() and wait() method in Java

Difference between sleep() and wait() method in Java

Runnable interface in java

Daemon thread in java with example

Daemon Thread In Java With Example

Thread Priority in Java with example

Thread Priority in Java with example

Spring boot datasource configuration using tomcat

Spring boot datasource configuration using tomcat

wait(),notify() and notifyAll() in java

wait() notify() and notifyAll() method in Java

Thread sleep() method in java

Thread sleep() method in Java

Thread join() method in Java

Thread join() method in Java

Thread yield() method in Java with example

Thread yield() method in Java with Example

Thread getId() method in Java

Thread getName() method in java

Thread dumpStack() method in Java

Thread currentThread() method in Java

Thread checkAccess() method in Java

Thread activeCount() method in Java

Thread life cycle in Java

Thread life cycle in Java

Deploy Spring Boot application on external Tomcat

Deploy Spring Boot application on external Tomcat

Deploy multiple war files in JBoss to different port

How to deploy multiple war files in Jboss in same port

How run() method Works internally in Java

How run() method Works internally in Java

Thread class constructors and methods in Java

How to create a thread in Java

How to create a thread in Java

Multithreading in Java with example

Multithreading in Java with example

How HashMap works internally in Java

Junit test for private methods reflection example

Accessing private class members using reflection

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