Welcome to CSE 131Anatomy of a Java programAnatomy of a Java programAnatomy of a Java programAnatomy of a Java programAnatomy of a Java programWelcome to CSE 131This is a very short exercise that you do as part of Lab 0Review the following slides to learn the anatomy of a Java class program. There is an exercise for you to complete as part of Lab 0 to test your knowledge of these slides. You can repeat the exercise as many times as you need until you are able to recognize the different parts of a Java program.Anatomy of a Java program2•A Java program can have many packages.•Each package contains a set of related classes.•For example, a baseball package might have a Pitcher, Batter, and Scorekeeper class•The name of this package is lab0Anatomy of a Java program3•A class describes the behaviors of an object.•This class is called RobotInstructions•It has just one kind of behavior which is to act•Other objects have more behaviors•For example, a Pitcher might throw a ball, catch a ball, etc.Anatomy of a Java program4•The behaviors in a class are divided into methods•This method is named “act”•A Pitcher might have a method to throw a ball, catch a ball, etc.Anatomy of a Java program5•For a method to do its job, it sometimes needs information•You see here an “incoming parameter” – a “robot” that is provided to the “act” method.•The act method can then issue instructions to the robotAnatomy of a Java program6•This line of code sends a message to an object to tell it to do something•The object here is “robot” – it is the thing we are telling to do something•The method call is “forward” – we are asking the robot to go forward•This method call requires some information – how far forward should it go?•The value of 100 is the outgoing parameter, sent to the forward method, addressed to the