1.8 Creating, Compiling, and Executing a Java Program

1.8.6 Can Java run on any machine? What is needed to run Java on a computer?

Java can run on a variety of hardware platforms and operating systems, the JDK is needed to run Java programs on a computer

1.8.5 What is the JVM?

The Java Virtual Machine interprets Java bytecode and executes it.

1.8.1 What is the Java source filename extension? What is the Java bytecode filename extension?

The Java source filename extension is .java and the Java byte code has the filename extension .class

1.8.2 What are the input and output of a Java compiler?

The input is the Source code and the output is byte code

1.8.8 If a NoSuchMethodError occurs when you run a program, what is the cause of the error?

This occurs when the class file is missing a main method or the main method is mistyped (ex:Main)

1.8.7 If a NoClassDefFoundError occurs when you run a program, what is the cause of the error?

This occurs when you execute a class file that does not exist.

1.8.4 What is the command to run a Java program?

java example

1.8.3 What is the command to compile a Java program?

javac example.java