The role of this:
1) this is a reference to the current object, which facilitates the use of the current object parameters;
2) You can return a reference to the object's own class, and you can also call another constructor
## in aconstructor #this example:
public class ThisDemo { public ThisDemo() { this.number=20; } public ThisDemo(int number,int number2) { this();//调用无参数的构造函数 this.number2=number2; } ThisDemo increment(){ number++; number2++; return this; } private void print(){ System.out.println("number="+number+";number="+number2); } public static void main(String[] args) { ThisDemo tt=new ThisDemo(); tt.increment().increment().increment().print(); } }
The above is the detailed content of Sample code sharing of Java keyword this. For more information, please follow other related articles on the PHP Chinese website!

Java'splatformindependencemeansdeveloperscanwritecodeonceandrunitonanydevicewithoutrecompiling.ThisisachievedthroughtheJavaVirtualMachine(JVM),whichtranslatesbytecodeintomachine-specificinstructions,allowinguniversalcompatibilityacrossplatforms.Howev

To set up the JVM, you need to follow the following steps: 1) Download and install the JDK, 2) Set environment variables, 3) Verify the installation, 4) Set the IDE, 5) Test the runner program. Setting up a JVM is not just about making it work, it also involves optimizing memory allocation, garbage collection, performance tuning, and error handling to ensure optimal operation.

ToensureJavaplatformindependence,followthesesteps:1)CompileandrunyourapplicationonmultipleplatformsusingdifferentOSandJVMversions.2)UtilizeCI/CDpipelineslikeJenkinsorGitHubActionsforautomatedcross-platformtesting.3)Usecross-platformtestingframeworkss

Javastandsoutinmoderndevelopmentduetoitsrobustfeatureslikelambdaexpressions,streams,andenhancedconcurrencysupport.1)Lambdaexpressionssimplifyfunctionalprogramming,makingcodemoreconciseandreadable.2)Streamsenableefficientdataprocessingwithoperationsli

The core features of Java include platform independence, object-oriented design and a rich standard library. 1) Object-oriented design makes the code more flexible and maintainable through polymorphic features. 2) The garbage collection mechanism liberates the memory management burden of developers, but it needs to be optimized to avoid performance problems. 3) The standard library provides powerful tools from collections to networks, but data structures should be selected carefully to keep the code concise.

Yes,Javacanruneverywhereduetoits"WriteOnce,RunAnywhere"philosophy.1)Javacodeiscompiledintoplatform-independentbytecode.2)TheJavaVirtualMachine(JVM)interpretsorcompilesthisbytecodeintomachine-specificinstructionsatruntime,allowingthesameJava

JDKincludestoolsfordevelopingandcompilingJavacode,whileJVMrunsthecompiledbytecode.1)JDKcontainsJRE,compiler,andutilities.2)JVMmanagesbytecodeexecutionandsupports"writeonce,runanywhere."3)UseJDKfordevelopmentandJREforrunningapplications.

Key features of Java include: 1) object-oriented design, 2) platform independence, 3) garbage collection mechanism, 4) rich libraries and frameworks, 5) concurrency support, 6) exception handling, 7) continuous evolution. These features of Java make it a powerful tool for developing efficient and maintainable software.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 Linux new version
SublimeText3 Linux latest version

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
