Javada Sunucu-İstemci Örneği(Server-Client)

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/**
 *
 * @author ADANALI
 */
import java.io.*;
import java.net.*;

public class SunucuOrnek1 {

    public static final int PORT = 8080;

    public static String karsiliginiBul(int sayi) {
        String ifade = null;
        switch (sayi) {
            case 0:
                ifade = "sifir";
                break;
            case 1:
                ifade = "bir";
                break;
            case 2:
                ifade = "iki";
                break;
            case 3:
                ifade = "uc";
                break;
            case 4:
                ifade = "dort";
                break;
            case 5:
                ifade = "bes";
                break;
            case 6:
                ifade = "alti";
                break;
            case 7:
                ifade = "yedi";
                break;
            case 8:
                ifade = "sekiz";
                break;
            case 9:
                ifade = "dokuz";
                break;
            default:
                ifade = "bilinmeyen deger";
                break;
        }
        return ifade;
    }

    public static **** main(String[] args) throws IOException {
        ServerSocket sunucuSoketi = new ServerSocket(PORT);
        System.out.println("Basladi: " + sunucuSoketi);
        try {
            Socket kullaniciSoketi = sunucuSoketi.accept();
            BufferedReader giris = new BufferedReader(new InputStreamReader(kullaniciSoketi.getInputStream()));
            try {
                System.out.println("baglanti kabul edildi :" + kullaniciSoketi);
                PrintWriter cikis = new PrintWriter(new BufferedWriter(new OutputStreamWriter(kullaniciSoketi.getOutputStream())), true);
                String str = giris.readLine();
                while (str != null) {
                    System.out.println(str);
                    Integer i = new Integer(str);
                    int sayi = i.intValue();
                    String ifade = karsiliginiBul(sayi);
                    cikis.println(ifade);
                    str = giris.readLine();
                }
            } finally {
                System.out.println("baglanti kapatiliyor...");
                kullaniciSoketi.close();
            }
        } finally {
            sunucuSoketi.close();
        }
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author ADANALI
 */
import java.io.*;
import java.net.*;

public class istemciOrnek1 {

    public static **** main(String[] args)throws IOException{
        InetAddress adres = InetAddress.getByName(null);
        System.out.println("Ip Adresi : "+adres);
        Socket soket = new Socket(adres,8080);
        
        try{
            System.out.println("soket ="+soket);
            BufferedReader giris = new BufferedReader(new InputStreamReader(soket.getInputStream()));
            PrintWriter cikis = new PrintWriter(new BufferedWriter(new OutputStreamWriter(soket.getOutputStream())), true);
            for(int i = 0; i<10;i++)
            {
                try{
                    Thread.sleep(200);
                    int sayi = (int)(Math.random() *10);
                    cikis.println(sayi);
                    String str = giris.readLine();
                    System.out.println("-->"+sayi+" = "+str);                    
                }catch(Exception excep){excep.printStackTrace();}
            }
        }finally{System.out.println("baglanti kapatiliyor..."); soket.close();}
    }
}