You just compiled your first Java application, albeit a simple one, on OSX. Type the following commands into the terminal:
Run the Terminal app, which is located in 'Applications/Utilities/Terminal.app'. Now that you have written a simple Java program, you need to compile it. The () method will print a line of text to the screen, 'Hello World!' in this example. Think of it as a starting point for your program. The main method is special in Java, because it is the method the Java runtime will attempt to call when you tell it to execute your program. This simple program declares a single class called HelloWorld, with a single method called main. Open up a text editor (the built-in TextEdit app works fine), type in the following code, and save the file as 'HelloWorld.java' in your home directory.įor example, if your username is David, save it as '/Users/David/HelloWorld.java'. The first step is writing a simple Java program. Apple includes a fully-functional Java runtime and development environment out-of-the-box with OSX, so all you have to do is write a Java program and use the built-in tools to compile and run it. 6,165 28 28 gold badges 66 66 silver badges 94 94 bronze badges 5 AnswersĬompiling and running a Java application on Mac OSX, or any major operating system, is very easy.
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