Describe invoking methods in java, JAVA Programming

Assignment Help:

Describe Invoking Methods in java?

class Car {

String licensePlate = ""; // e.g. "New York 543 A23"
double speed = 0.0; // in kilometers per hour
double maxSpeed = 123.45; // in kilometers per hour

// accelerate to maximum speed
// put the pedal to the metal
void floorIt() {
this.speed = this.maxSpeed;
}

}
Outside the Car class, you call the floorIt() method just like you reference fields, by using the name of the object you need to accelerate to maximum and the . separator as elaborates below
class CarTest3 {

public static void main(String args[]) {

Car c = new Car();

c.licensePlate = "New York A45 636";
c.maxSpeed = 123.45;

System.out.println(c.licensePlate + " is moving at " + c.speed +
" kilometers per hour.");

c.floorIt();

System.out.println(c.licensePlate + " is moving at " + c.speed +
" kilometers per hour.");

}
}
The output is:
New York A45 636 is moving at 0.0 kilometers per hour.
New York A45 636 is moving at 123.45 kilometers per hour.

The floorIt() method is fully enclosed inside the Car class. Every method in a Java program must belong to a class. Unlike C++ programs, Java programs cannot have techniques hanging around in global space in which does everything you forgot to do inside your classes. 


Related Discussions:- Describe invoking methods in java

What is jms, Java Message Service: An interface executed by most J2EE conta...

Java Message Service: An interface executed by most J2EE containers to give point-to-point queueing and topic (publish/subscribe) behavior. JMS is frequently used by EJB's that req

Programming Project, Design and implement a class called Sphere that contai...

Design and implement a class called Sphere that contains instance data that represents the sphere''s diameter, and include getter and setter methods for the diameter. Include metho

Explain drawing rectangles in java, Explain Drawing Rectangles in java ? ...

Explain Drawing Rectangles in java ? Drawing rectangles is easy. Begin with a Graphics object g and call its drawRect() method: public void drawRect(int x, int y, int width, i

Why local variable is preferred over global variable, Why Local variable is...

Why Local variable is preferred over Global variable ? In my point of view Global variable has a few advantage along with Local variables is preferred because of the subsequent

Write a program to explain do while loop in java, Write a program to explai...

Write a program to explain do while loop in Java ? // This is the Hello program in Java class Hello { public static void main (String args[]) { int i = -1; do { if (

Illustrate java management extensions (jmx)?, JMX framework can enhance the...

JMX framework can enhance the manageability of your application by  1. Monitoring your application for critical events, performance problems, and error condition statistics. E.g

State the java virtual machine and runtime environment, Java Virtual Machin...

Java Virtual Machine & Runtime Environment Basic Concept When you write a program in C++ it's called source code. C++ compiler converts this source code into the machine c

Compiler Design - Limit the loops, Problem : Compiler Design - Limit the lo...

Problem : Compiler Design - Limit the loops Rajni is a newbie to the programming and while learning the programming language he came to know the following rules: ???• Each

What is the order of function invocation in an applet? , The Applet's life ...

The Applet's life cycle functions are as follows: public void init() : Initialization function called only once by the browser. public void start() : Method called after

Computer application and program, Computer application and program. Proj...

Computer application and program. Project Description: I require a project done. It is a computer desktop application program. It is not very hard. Skills required: Any

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd