String vs StringBuffer vs StringBuilder in Java | Differences with Examples | Java for Beginners

▶️ Welcome to this detailed Java tutorial on String vs StringBuffer vs StringBuilder!
In this session, we’ll cover the key differences, use cases, and performance comparison of these three core classes in Java — with examples, memory explanation, and comparison in tabular format.

▶️ What you’ll learn in this video:

✅ What is String in Java (Immutable)
✅ What is StringBuffer and StringBuilder (Mutable)
✅ Performance comparison (which is faster and why)
✅ Thread-safety and synchronization
✅ equals() and == behavior
✅ When to use String, StringBuffer, or StringBuilder
✅ Comparison in String, StringBuffer, or StringBuilder in tabular format.

📌 Interview Questions on String | StringBuffer | StringBuilder -- 📌

What is the difference between String, StringBuffer, and StringBuilder in Java?

Why is String immutable in Java?

What is the benefit of immutability in String class?

When should we use StringBuffer over StringBuilder?

Which is faster – String, StringBuffer, or StringBuilder and why?

How many objects are created in memory when we use new String("Java")?

What is the difference between equals() and == for String, StringBuffer, and StringBuilder?

Why does equals() return false for StringBuffer and StringBuilder even when content looks same?

Can you explain what is SCP (String Constant Pool) in Java?

How to compare the content of two StringBuffer or StringBuilder objects correctly?

Is StringBuffer thread-safe? How does it achieve thread safety?

What will happen if multiple threads access a StringBuilder object?

Can you explain the performance difference between StringBuffer and StringBuilder with example?

How to reverse a string using StringBuffer or StringBuilder?

Is StringBuilder safe to use in multi-threaded applications?

Thanks for watching! Happy coding and automating!

🔔 Learn automation from basic !! 🔔

✅ Automation Framework Design from Scratch :=

✅Test Automation Interview Questions :=

✅ Let's Learn the Concept in 5 To 10 Mins :=

✅ Selenium videos Playlist :=

✅ Maven Tool videos playlist :=

✅ Selenium WebDriver Exceptions Playlist :=

✅ Selenium Grid With Docker:==

✅ Jenkins Tool Series :==

✅ Excel and CSV files operations :=

✅ Git, GitLab, GitHub, IntelliJ, Docker imp Concepts :=

✅TestNG Framework Videos:=

⚡️ Thanks for your support !! ⚡️

======================================
**************** Thanks for watching !!**************
======================================

⚡️ Keep Learning...Keep Sharing...Keep Growing. ⚡️

#Automation
#SeleniumWebDriver
#TestAutomation
#SeleniumPOM
#JenkinsWithTestNG
#JavaDevelopment
#DockerPipeline
#SeleniumGrid
#TestNGPOM
#TestNGSelenium
#TestNGAnnotations
#PageObjectDesign
#seleniumwebdriver
#AutomationTools
#TestAutomation
#JenkinsSetup
#JavaSelenium
#SeleniumAutomation
#POModel
#DockerWithSelenium
#SeleniumTestNG
#seleniumframework
#AutomationScripts
#DockerAndAWS
#JenkinsMasterSlave
#DevOpsPipeline
#MavenJavaIntegration
#AutomationFramework
#eclipse
#JavaAutomationFramework
#QA
#JenkinsJobs
#seleniumtutorials
#Selenium
#JenkinsPipeline
#SeleniumWithJava
#TestAutomationFramework
#AWSAutomation
#JenkinsMaven
#JavaFramework
#JavaAutomation
#SeleniumTesting
#TestAutomationTools
#AWS
#JenkinsDockerIntegration
#seleniumautomachinetesting
#PythonTesting
#ContinuousTesting
#JenkinsWithSelenium
#WebTesting
#SoftwareTesting
#JenkinsAndGit
#SeleniumWithPython
#SeleniumJava
#JenkinsParameterization
#CodeTesting
#seleniumautomation
#TestNGAutomation
#PageObjectModel
#SeleniumScripts
#Automation
#JenkinsBuildPipeline
#JenkinsAWSIntegration
#PythonScripting
#JenkinsScriptedPipeline
#QualityAssurance
#MavenWithSelenium
#JavaWithTestNG
#Frameworks
#TestEngineers
#MavenTutorial
#SeleniumWebDriver
#SeleniumPageObjectModel
#dockerTutorial
#CICD
#JenkinsContinuousIntegration
#JenkinsTutorial
#testautomation
#JenkinsCI
#seleniumtutorialforbeginners
#TestingTools
#AutomationTestingTools
#JenkinsContinuousDelivery
#Selenium4
#JavaCoding
#JenkinsConfiguration
#maven
#JenkinsSeleniumGrid
#CloudComputing
#TestingWithJava
#JenkinsIntegration
#IaaS
#AutomationTesting
#Javatestingframework
#TestNGTutorial