What should I save a Java file as?

Where should I save my Java files?

Usually you put Java classes in packages in a hierarchical directory structure in the filesystem, in which case the Java compiler will also put . class files in a corresponding structure. If you run javac from the command line, the -d argument specifies the destination root directory for . class files.

How do I run a .Java file?

How to run a java program

  1. Open a command prompt window and go to the directory where you saved the java program (MyFirstJavaProgram. java). …
  2. Type ‘javac MyFirstJavaProgram. …
  3. Now, type ‘ java MyFirstJavaProgram ‘ to run your program.
  4. You will be able to see the result printed on the window.

Where can I write Java code?

The top 11 Free IDE for Java Coding, Development & Programming

  • NetBeans. …
  • Eclipse. …
  • IntelliJ IDEA Community Edition. …
  • Android Studio. …
  • Enide Studio 2014. …
  • BlueJ. …
  • jEdit. …
  • jGRASP.

Where does Java look for class files?

By default, javac and javadoc search the user class path for both class files and source code files. If the -sourcepath option is specified, javac and javadoc search for source files only on the specified source file path, while still searching the user class path for class files.

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Can we save the Java source file without any name?

what do you mean by without any name there need to be some name. Yes,it is possible to compile a java source file with different file name but you need to make sure none of the classes defined inside are public… when you compile the source file the corresponding .

How do I save an Eclipse project as a Java file?

To export a project to a JAR file

  1. Start Eclipse and navigate to your workspace.
  2. In Package Explorer, left-click on the project you want to export.
  3. Right-click on the same project and select Export
  4. When the Export dialog box pops up, expand Java and click on JAR file. …
  5. The JAR Export dialog will pop up. …
  6. Click Finish.

Can you download Java for free?

Visit the Java website and download the installer

To install Java, you first need to download the installer program from Oracle. Click the “Free Java Download” button. You are then prompted to read and agree with the end user license agreement.

Can you write Java in notepad?

You can write Java in notepad, and compile and run it from the command line.

How do I know if Java is installed?

Open command prompt and enter “java –version”. If installed version number is displayed.