Run Java Code without a package in Eclipse IDE

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must declare a named package
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I want to run my code without creating a package in java eclipse IDE.

But when I do so it is showing error :

Must declare a named package because this compilation unit is associated to the named module 'Games'

You are using the Java Platform Module System (JPMS) which requires not to use the default/unnamed package.

In the default package delete the file module-info.java to not use JPMS and to be able to have code in the default package.

Eclipse .java file without project and package creation (IDEs and , 1 ) Can .java files can be created and compiled in the Eclipse without Eclipse essentially does require you to create a project and put your Java source code into it. You can setup debug/run profiles for the different classes. A recent Java subreddit thread called "Compiling Java Packages without IDE" posed the question, "is [there] a command that compiles a group of java files that are inside a package into a separate

Just right click on the project folder -> New -> Package. Once the package is made, move all your classes into it.

Run Java Code without a package in Eclipse IDE, I want to run my code without creating a package in java eclipse IDE. But when I do so it is showing error : Must declare a named package because this  Run the command line by pressing Windows key +R and type CMD. then go to the folder where you save your file. then compile your java code using witer “ javac fielname.java”. then if no error write “java filename” your code will run and you got the output as per your coding.

Double click on the error icon at the line number ->move to default package option.

Make sure the classes are (public or protected) to be used in different packages.

Compiling and Running Java Without an IDE, Compiling and Running Java Without an IDE a group of java files that are inside a package into a separate folder (let's just call it The post's author, kylolink, explains that "When I started out using Java I relied on Eclipse to do all the No matter which approach one uses to build Java code (Ant, Maven,  Eclipse essentially does require you to create a project and put your Java source code into it. It's actually possible to just use File | Open to open a Java file and edit it, but the editor will have reduced functionality; it will act more like a plain text editor and won't be able to help you write code and find errors the way the full editor can.

In the file in question, right click to get the context menu. Select "Refactor->Move". The resultant dialog will have the (default package) into which the source file may be placed.

Also, be sure to not have a package definition line at the start of the source file.

Please note that the use of the default package is generally discouraged, but there are time I still use it (primarily for printing copyright/version information).

There are also options for turning on hidden/suppressed parent packages, but I think the Refactor approach is the most clean.

Using the Eclipse IDE for Java programming - Tutorial, Create your first Java program Run Java program outside Eclipse Download the Eclipse IDE for Java Developers package from the following the view, the underlying data is directly changed, without the need to save. #1 Write program in any Text Editor and save file with extension (filaName.java) #2 To COMPILE The Code in cmd type: javac fileName.java #3 To RUN/EXECUTE the Program in cmd type: java className

How to create, build and run a Java Hello World program with Eclipse, Eclipse IDE for Java Developers: This is for developing Java SE applications, a subset of the Java EE Developer package. So I recommend you  How to Run Java Program in Eclipse. Eclipse is a very good IDE ( Integrated Development Environment ) for Java Development. You can program easily and efficiently with that.

Eclipse IDE: Building and Running a Project, Right-click on the file and select Run As → Java Application, as in the Once you run the HelloWorld program, you should notice output in the Console way: Right-click on the FortuneTeller folder in Package Explorer and choose Properties: This tutorial will guide you through the steps of installing Eclipse IDE and Run Java programs in it along with a demo program..

Getting Started in Eclipse, But as projects get larger, having an integrated development environment with lots of Upon running Eclipse you should see a pane labeled 'Package Explorer'​, You can traverse the tree of an open project to view the packages and Java files it Note: If your program executes without outputting to the console, creating a 

Comments
  • but I don't want to create any package ... I want to make it default !!!
  • sry bro ... didn't get it ! Can u explain please ?
  • When you remove the package statement from your code, eclipse shows error on the line number right? When you double click the error symbol, it also shows the suggestions to correct the error. Among them, choose "move to default package" option
  • but i doubled click on error symbol but it showing nothing !
  • Try keeping the mouse pointer on the error symbol without clicking on it and see if it suggests. In my eclipse ide it does.
  • sry bro nothing happen !