4 An Anatomy(解剖,分析) of Class
/*
This class defines a cabbie and assigns a cab
*/
public class Cabbie{
//Place name of Company Here
private static String companyName = "Blue Cab Company";
//Name of the Cabbie
private String Name;
//Car assigned to Cabbie
private Cab myCab;
//Default Constructor for the Cabbie
public Cabbie(){
name = null;
myCab = null;
}
//Name Initializing Constructor for the Cabbie
public Cabbie(String iName, String serialNumber){
Name = iName;
myCab = new Cab(serialNumber);
}
//Set the Name of the Cabbie
public void setName(String iName){
Name = iName;
myCab = new Cab(serialNumber);
}
//Get the Name of the Company
public static string getName(){
return Name;
}
}
//Get the Name of the Cabbie
public static String getCompanyName(){
return companyName;
}
public void giveDestination(){
}
public void turnRight(){
}
public void turnLeft(){
}
Comments
星號,斜槓
*/ (asterisk-slash)
// (slash-slash)
Attributes
Static keyword, class attribute..
The nothingness of null
Esoteric 深奧的 難解的
For example, you might want to declare an attribute that will later require user input.
Thus, you can initialize the attribute to null before the user is actually given the opportunity
to enter the data.
Accessors
Static attributes
Public interface methods
The public interface methods tend to be very abstract, and the implementation tends to be more concrete.
Private implementation methods
These private methods are simply meant to be part of the implementation and not the public interface.
Public void giveDestination(){
.. some code
turnRight();
turnLeft();
.. some code
}
encryption methods
The point here is that private methods are strictly part of the implementation and are not accessible by other classes.