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 a relational database, What is a Relational Database? Give the name...

What is a Relational Database? Give the names of any three RDBMS software? Database consist of two or more then two tables are called Relational database. Oracle dabatbase S

I need ios native app developer, I want someone to help me prepare a simple...

I want someone to help me prepare a simple inventory system. I am not a programmer trying to learn as i go. Skills required: Android, Java, iPhone, Mobile Phone, Objective

What is the difference between jsp and jsf, JSP simply gives a Page which m...

JSP simply gives a Page which may contain markup, embedded Java code, and tags which encapsulate more complicated logic / html. JSF may use JSP as its template, but gives much more

Explain testing objects for equality in java, Explain Testing Objects for E...

Explain Testing Objects for Equality in java? , = can only be used with numbers and characters. They cannot be used with Strings, booleans, arrays or other compound types sin

What are logic- or time-bombs, What are Logic- or Time-Bombs ? It execu...

What are Logic- or Time-Bombs ? It execute the payload while predetermined event occurs. For instance use kind's particular phrase and particular data is reached.

Need the following code for double variables instead of int, Need the follo...

Need the following code in double var instead of integer. import javax.swing.*; public class arrayVar { public static void main (String[] args) //This is our main method prompt

The fancy new French restaurant La Food is very popu, The fancy new French ...

The fancy new French restaurant La Food is very popular for its authentic cuisine and high prices. This restaurant does not take reservations. To help improve the efficiency of the

What type of information can be stored in a database, What type of informat...

What type of information can be stored in a database? In a database we can store several types of informations like: • Numbers, Booleans, text • Sounds • Images • Video

Basic difference between equals and identity method, The == gives true, i...

The == gives true, if the variable reference points to the similar types of object in memory. That is a " shallow comparison ".   The equals () - gives the results of run

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