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Running a Java class involves compiling the Java source file into a bytecode file (.class) and then executing it using the Java Virtual Machine (JVM). This process can be done using the terminal or command prompt on any operating system.
Step 1: Compile the Java File
First, you need to compile the Java source file (.java) into a bytecode file (.class). Open your terminal or command prompt and navigate to the directory containing your Java file. Use the javac command followed by the file name to compile it. For example:
javac Main.javaCopied!✕CopyThis command will generate a Main.class file in the same directory if the compilation is successful.
Step 2: Run the Compiled Class
To run the compiled class, use the java command followed by the class name without the .class extension. For example:
java MainCopied!✕CopyThis command will execute the main method of the Main class and display the output in the terminal or command prompt.
Example
Here is a simple example to illustrate the process:
Java Code (Main.java)
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