You can either pick a text editor (like Notepad or Notepad on Windows and Vi/Vim on Linux/Mac OS) or an IDE (like Eclipse or NetBeans or CodeBlocks) to write Java code. Adding JAVA_HOME to your environment is not only a good practice but useful too.Ī) To do it on Windows, open the “Edit environment variables” dialog and set up the JAVA_HOME pointing to the Java installation directory.ī) To do it on Linux or Mac OS, update the user profile “~/.profile” by adding an entry of JAVA_HOME. Open the console window, and issue one of the following commands as per the OS you are using: # On Windowsīy the way, if you don’t have the above variable set, then don’t worry and add one yourself. Once you have everything set up, then check if the JAVA_HOME variable exists or not. In case, you don’t find Java on your system, then download and install the latest version from the formal Oracle site. Or you can directly go to the “C:\Program Files” or “C:\Program Files (x86)\” directory, and check if it has some “jdkX.X.X_XX” folder inside.Ģ) On Linux or Mac OS, open the terminal (CTRL T), and run the following commands to check Java availability. Before you paddle up to write your first Java program, make sure you have the Java SE development kit installed on the system.ġ) On Windows, open the “Run” window (Press Win R), type “appwiz.cpl” to launch the “Programs and Features” dialog.
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January 2023
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