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Jan 27, 2023 · Principle 1: Compilation. First, the source ‘.java’ file is passed through the compiler, which then encodes the source code into a machine-independent encoding, known as Bytecode. The content of each class contained in the source file is stored in a separate ‘.class’ file.
- 11 min
A Java compiler is a program that takes the text file work of a developer and compiles it into a platform-independent Java file. Java compilers include the Java Programming Language Compiler (javac), the GNU Compiler for Java (GCJ), the Eclipse Compiler for Java (ECJ), and Jikes.
- 2 min
- Overview
- Using Java Software Development Kit
- Using an Online Java Compiler
This wikiHow teaches you how to turn your Java source code into an executable app using a local and online compiler. If you're using a computer, the most common way to compile Java code is using Java Software Development Kit (Java SDK) from the command line. If you're using a phone or tablet (or a computer without a compiler), you can use an online compiler like Codiva.
With the Java SDK installed, open your computer's command prompt to compile your Java program.
Use an online compiler for an easy and lightweight option to check if your code is working properly.
Online compilers often autosave, so you don't have to worry about losing progress if something were to go wrong.
You can use the Java Software Development Kit (Java SDK) from the command prompt on Windows, macOS, or Linux. If you don't have the Java SDK installed, see
How to Install the Java Software Development Kit
Here's how to get to the command prompt on each system:
Windows: Right-click the Start menu and select
If you don't see this option, type cmd into the Windows Search bar and click
macOS: Click the magnifying glass at the top-right corner of the screen to open Spotlight, type terminal, and then click
Codiva is an online Java compiler that's great for people who can't install a compiler locally—it can even be used on a phone or tablet.
There are a variety of online compilers out there if Codiva doesn't work for your needs. Some other popular options are
Sign in or create an account.
If you're new to Codiva, click
at the top-right corner to sign up.
Enter a project name and click
Sep 7, 2022 · Java compilers are programs that take source code and produce class files containing platform-neutral Java bytecode that can be executed by the Java Virtual Machine (JVM).
Compiling a Java program means taking the programmer-readable text in your program file (also called source code) and converting it to bytecodes, which are platform-independent instructions for the Java VM.
Java is a popular programming language. Java is used to develop mobile apps, web apps, desktop apps, games and much more. Start learning Java now » Examples in Each Chapter. Our "Try it Yourself" editor makes it easy to learn Java. You can edit Java code and view the result in your browser. Example Get your own Java Server.
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Mar 11, 2020 · javac.exe: is Java compiler that translates programs written in Java code into bytecode form. java.exe: is the Java Virtual Machine launcher that executes bytecode.
