Notes

public class Book{

//data fields
private String title;
private String author;
private int yop;
private boolean hCover;

//constructor
public Book(){
title = null;
author = null;
yop = -1;
hCover = false;
}//end of constructor

//setters
public void setTitle(String x){
title = x;
}//end of setTitle()

public void setAuthor(String x){
author = x;
}//end of setAuthor()

public void setYop(int x){
yop = x;
}//end of setYop()

public void setHCover(boolean x){
hCover = x;
}//end of setHCover()


//getters
public String getTitle(){
return title;
}//end of getTitle()

public String getAuthor(){
return author;
}//end of getAuthor()

public int getYop(){
return yop;
}//end of getYop()

public boolean getHCover(){
return hCover;
}//end of getHCover()


}//end of class









*constructor is a method which is used in order to initiase the fields of the class:
1. the constructor always has the names of the class
2. we never have a indication about a return value

**one setter and one getter for every field
1. stadard setters are always void

scope of which parameter is only that method