Creating Objects of a Class : Defining Class « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » Defining Class

5. 1. 4. Creating Objects of a Class


class Sphere {

  double radius; // Radius of a sphere



  Sphere() {



  }



  // Class constructor

  Sphere(double theRadius) {

    radius = theRadius; // Set the radius



  }



}



public class MainClass {

  public static void main(String[] arg){

    Sphere sp = new Sphere();

    

  }



}

5. 1. Defining Class
	5. 1. 1.	What Is a Java Class?
	5. 1. 2.	Fields
	5. 1. 3.	Defining Classes: A class has fields and methods
	5. 1. 4.	Creating Objects of a Class
	5. 1. 5.	Checking whether the object referenced was of type String
	5. 1. 6.	Class declaration with one method
	5. 1. 7.	Class declaration with a method that has a parameter
	5. 1. 8.	Class that contains a String instance variable and methods to set and get its value
	5. 1. 9.	Class with a constructor to initialize instance variables
	5. 1. 10.	Specifying initial values in a class definition

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