This project is a compilation of examples code written in java.
Update jvm
$ sudo update-alternatives --config java- Create a array
Foo f[] = new Foo[20]
F[2]= new Foo("Papa")- create a list
ArrayList<Serie> series = new ArrayList<Serie>();
series.add(new Serie(""));- Declare a attribute readonly
class Serie extends Film {
public final int CONSTANTS_NAME;
}- Inheritance and call methods of class father
public class Magazine extends Publication {
private int id;
public String getId() {
String title = super.getTitle();
return title + Integer.toString(id);
}
}- Apply polymorphism
public class Publication {
private String title;
private Date editionDate;
private String editorial;
private String[] authors;
public Publication(String title, Date edititionDate, String editorial) {
super();
this.title = title;
this.editionDate = edititionDate;
this.editorial = editorial;
}
public String toPrint() {
return "This is a new publication"
}
}public class Book extends Publication implements IDisplayable {
private int id;
private String isbn;
private boolean readed;
private int timeReaded;
public Book(String title, Date edititionDate, String editorial, String[] authors) {
super(title, edititionDate, editorial);
// TODO Auto-generated constructor stub
setAuthors(authors);
}
@Override
public String toPrint() {
// TODO Auto-generated method stub
String detailBook = "\n :: BOOK ::" +
"\n Title: " + getTitle() +
"\n Editorial: " + getEditorial() +
"\n Edition Date: " + getEdititionDate() +
"\n Authors: ";
for (int i = 0; i < getAuthors().length; i++) {
detailBook += "\t" + getAuthors()[i] + " ";
}
return detailBook;
}
}- Create interface, apply functionality without inheritance
import java.util.Date;
public interface IDisplayable {
Date startToSee(Date dateI);
void stopToSee(Date dateI, Date dateF);
}