How does a Java program runs?

In Java, programs are not compiled into executable files; they are compiled into bytecode (as discussed earlier), which the JVM (Java Virtual Machine) then executes at runtime . Java source code is compiled into bytecode when we use the javac compiler. The bytecode gets saved on the disk with the file extension .

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What is Java compile command?

Description. The javac command reads source files that contain module, package and type declarations written in the Java programming language, and compiles them into class files that run on the Java Virtual Machine . The javac command can also process annotations in Java source files and classes.

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How do you start a class in Java?

To create a new Java class or type, follow these steps: In the Project window, right-click a Java file or folder, and select New > Java Class . Alternatively, select a Java file or folder in the Project window, or click in a Java file in the Code Editor. Then select File > New > Java Class.

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