Q:- Which change best facilitates managing these changes and keeping the business object working?
Anonymous Quiz
27%
Implement java.io.Externalizable and choose which variables to serialize.
31%
Make unwanted instance variables private.
22%
Make unwanted instance variables transient.
20%
serialPersistentFields array and refer writeObject / readObject when writing or reading variable
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Q. Which interface provides key-value pair?
Q. Which interface provides key-value pair?
Anonymous Quiz
20%
a. List
33%
b. Set
26%
c. Map
21%
d. Collection
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Q. What is the implementation of the List interface?
Q. What is the implementation of the List interface?
Anonymous Quiz
16%
a. HashMap
25%
b. HashSet
46%
c. LinkedList
14%
d. LinkedHashSet
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Q:What are the implementation classes of the Map interface?
Q:What are the implementation classes of the Map interface?
Anonymous Quiz
15%
a. HashMap
37%
b. LinkedHashMap
19%
c. TreeMap
30%
d. All of above
Oracle SQL Cheat Sheet 📋.pdf
698.4 KB
Oracle SQL Cheat Sheet 📋.pdf
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Q: load() method
load() method is used to retrieve an object from the database by its identifier (primary key). It is used to initialize a proxy object instead of a fully-initialized object, so it can be used to lazily load the object when it is needed.
load() method does not retrieve the object from the database when it is called. Instead, it returns a proxy object that represents the object. The actual object is only retrieved from the database when it is needed, such as when a method of the object is called or a property is accessed. This technique is known as “lazy loading” and it is used to improve the performance of Hibernate by avoiding unnecessary database queries.
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Q: load() method
load() method is used to retrieve an object from the database by its identifier (primary key). It is used to initialize a proxy object instead of a fully-initialized object, so it can be used to lazily load the object when it is needed.
load() method does not retrieve the object from the database when it is called. Instead, it returns a proxy object that represents the object. The actual object is only retrieved from the database when it is needed, such as when a method of the object is called or a property is accessed. This technique is known as “lazy loading” and it is used to improve the performance of Hibernate by avoiding unnecessary database queries.
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REST API Interview Questions & Answers.pdf
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REST API Interview Questions & Answers.pdf
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What is DOM in Java?
DOM addresses the Document Object model. The point when an article contains some data about XML reports is called DOM Parser. This seems to be a tree structure. DOM API is carried out by a DOM Parser, which is extremely simple and easy to utilize. It addresses an XML Document into a tree design in which every component addresses tree limbs, makes an In Memory tree portrayal of the XML record, and then parses it. More memory is expected for this.
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What is DOM in Java?
DOM addresses the Document Object model. The point when an article contains some data about XML reports is called DOM Parser. This seems to be a tree structure. DOM API is carried out by a DOM Parser, which is extremely simple and easy to utilize. It addresses an XML Document into a tree design in which every component addresses tree limbs, makes an In Memory tree portrayal of the XML record, and then parses it. More memory is expected for this.
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multiThreadingNotes.pdf
555.7 KB
multiThreadingNotes.pdf
By default, Spring transactions are read-write, but you can explicitly configure them to be executed in a read-only context via the read-only attribute of the @Transactional annotation.
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Q:- What is light-4j?(Java)
light-4j is a platform or ecosystem for building and running cloud native microservices. The design goal is higher throughput, lower latency and smaller memory footprint to lower production costs.
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Q:- What is light-4j?(Java)
light-4j is a platform or ecosystem for building and running cloud native microservices. The design goal is higher throughput, lower latency and smaller memory footprint to lower production costs.
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h2_database_tutorial.pdf
737.7 KB
h2_database_tutorial.pdf
What is Actuator in spring boot
Actuator is mainly used to expose operational information about the running application — health, metrics, info, dump, env, etc. It uses HTTP endpoints or JMX beans to enable us to interact with it. Once this dependency is on the classpath, several endpoints are available for us out of the box.
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Actuator is mainly used to expose operational information about the running application — health, metrics, info, dump, env, etc. It uses HTTP endpoints or JMX beans to enable us to interact with it. Once this dependency is on the classpath, several endpoints are available for us out of the box.
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5_6116014703446590811.pdf
953.7 KB
Bootstrap.pdf
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DevTools stands for Developer Tool. The aim of the module is to try and improve the development time while working with the Spring Boot application. Spring Boot DevTools pick up the changes and restart the application.
We can implement the DevTools in our project by adding the following dependency in the pom.xml file.
Spring Boot DevTools provides the following features:
Property Defaults
Automatic Restart
LiveReload
Remote Debug Tunneling
Remote Update and Restart
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DevTools stands for Developer Tool. The aim of the module is to try and improve the development time while working with the Spring Boot application. Spring Boot DevTools pick up the changes and restart the application.
We can implement the DevTools in our project by adding the following dependency in the pom.xml file.
Spring Boot DevTools provides the following features:
Property Defaults
Automatic Restart
LiveReload
Remote Debug Tunneling
Remote Update and Restart
Join us @Compu