javac will read the source code, check it for syntax errors, apply optimizations, and produce a byte code file called Hello.class. A Java .class file is the machine code that the JRE is able to interpret and run.
javac will read the source code, check it for syntax errors, apply optimizations, and produce a byte code file called Hello.class. A Java .class file is the machine code that the JRE is able to interpret and run.