On the definition of classes and objects in Java programming _java

1, what is a class?

A: The class is an objective, abstract, conceptual thing.

2, what's the object?

A: The object is concrete, practical, and represents a thing. For example: A car is a class, a car, a bike is his object.

A description of classes and objects: A class is a template for an object and an object is an individual of a class.

How do you define a class in 3,java?

Class class name
defined in Java syntax Human: public
class person
{
}

4. How do I define an object?

1, Object declaration: Class name Object name;

2, object creation Object name = new class name (); new function: Allocate memory space.

It can also be written as follows: Class Name Object name = new class name ();

5, Example: Create an air conditioner and call refrigeration.

Design an air-conditioning
package practice;

public class Kongtiao {
  //Air conditioner property
  String name;
  String Pinpai;
  String Pishu;
  int tempeture;
  
  Define refrigeration behavior
  void Cool ()
  {
    tempeture--;
  }
  
  Define heating behavior
  void hot ()
  {
    tempeture+=7;
  }
  Main function public
  static void Main (string[] args) {
    Kongtiao kt = new Kongtiao ();
    Kt.name = "Beautiful";
    Kt.pishu = "2 Horses";
    Kt.tempeture =;
    Kt.pinpai = "Zhi Gao";
    /**
    Kt.cool ();
    System.out.println ("The temperature of the air-conditioner is" +kt.tempeture);
    * *
    
    kt.hot ();
    System.out.println ("The temperature of the air-conditioner is" +kt.tempeture);
    
    
  }

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