Java

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.Text;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class ReadWriteXml {
	public static void main (String[] args){
		writeXml ();
	//ReadXml();
	

}
	private static void ReadXml(){
		SAXBuilder builder = new SAXBuilder();
	
		Document readDoc = null;
		try {
			readDoc = builder.build(new File("./src/jdomMade.xml"));
		} catch (JDOMException | IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("Root:" + readDoc.getRootElement());
		
		System.out.println("Show:"+
				readDoc.getRootElement().getChild("show").getChildText("name"));
		System.out.println("show ID :" + readDoc.getRootElement().getChild("show").getChild("name").getAttributeValue("show_id) + "));
		Element root = readDoc.getRootElement();
		for (Element curEle : root.getChildren("show"));{
			Element curEle = null;
			System.out.println("show Name : " + 
		curEle.getChildText("name"));
			System.out.println("show ID : " 
		+curEle.getChild("name").getAttributeValue("show_id"));
			System.out.println(" on " + 
		curEle.getChildText("network")+"in the");
					System.out.println(curEle.getChild("network").getAttributeValue("country"));
		}
		
	}
		
		
	
private static void writeXml () {

	try{
	Document doc = new Document();
	Element theRoot = new Element ("tvshows");
	doc.setRootElement(theRoot);
	Element show = new Element ("show");
	Element name = new Element ("name");
	name.setAttribute("show_id","shows_001");
	name.addContent(new Text ("Game program"));
	Element network = new Element ("network");
	network.setAttribute("C***ry","TN");
	network.addContent(new Text ("TNN"));
	show.addContent(name);
	show.addContent(network);
	theRoot.addContent(show);
	
	//// second example
	
	Element show2 = new Element ("show");
	Element name2 = new Element ("name");
	name2.setAttribute("show_id","shows_002");
	name2.addContent(new Text ("Kids prgram"));
	
	Element network2 = new Element ("network");
	network2.setAttribute("C***ry","FR");
	network2.addContent(new Text ("TNT"));
	show2.addContent(name2);
	show2.addContent(network2);
	theRoot.addContent(show2);
	
	XMLOutputter xmlOutput = new XMLOutputter (Format.getPrettyFormat());
	xmlOutput.output(doc, new FileOutputStream(new File (".src/jdomMade.xml")));
	System.out.println("Wrote to file");
	}
    catch (Exception ex){
		
		ex.printStackTrace();
}

}
}

at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at ReadWriteXml.writeXml(ReadWriteXml.java:84)
    at ReadWriteXml.main(ReadWriteXml.java:16)

package test2;
public class Test2 {

     public static void main(String[] args) {
         ListaAnimale lista= new ListaAnimale();
         Caine c=new Caine();   
         Animal c1=new Caine();        
         Pisica p=new Pisica();
         lista.adauga(c);
         lista.adauga(p);
         c.faceZgomot();
     }
}
class ListaAnimale{
    private Animal [] animale = new Animal[5];
    private int index=0;
    public void adauga(Animal a){
        if(index <animale.length)
        {
            animale[index]=a;
            System.out.println("Un nou animal pe pozitia " +index);
            index++;
        }
    }
}

abstract class Animal{
 private String nume;
 private int  varsta;
 public Animal(String n, int a){
        this.nume=n;
        this.varsta=a;
    }    
 
 public void faceZgomot(){System.out.println("ce zgomot face");}
 public abstract void mananca();
 public void doarme(){
     System.out.println("Doaermee");
 }

  
}
class Caine extends Animal{
   
    public Caine(String n, int a){
    super(n,a);
    }  
    public  void faceZgomot(){System.out.println("wooar");}
    public  void mananca(){System.out.println("caarne");}
 }
class Pisica extends Animal{
    
    public Pisica(String n, int a){
    super(n,a);
    }  
    public  void faceZgomot(){System.out.println("miau");}
    public  void mananca(){System.out.println("lapte");}
}