What is a .class file and how do you make them?

[TheMagnitude]

Exactly what the title said.
What is a .class file and how do you make them?

[Phaelax]

It is a compiled java file. You make them by compiling java classes

[arul]

Say your source file is Test.java


Test.java --> javac (compiler) --> Test.class (byte code) -->
--> JVM interprets the bytecode of the class file and converts it to operating system specific instructions.