Untitled

1.Soru
class Ogrenci {
    String ad, soyad;
    int[] notlar;
    Ogrenci(String a,String s,int[] n){ad=a;soyad=s;notlar=n;}
    double ort(){int i=0,toplam=0;while(i<notlar.length){toplam+=notlar[i];i++;}return toplam/notlar.length;}
}
public class Main{
    public static void main(String[] args){
        int[] notlar={70,85,95};
        Ogrenci ogr=new Ogrenci("Gökalp","E....",notlar);
        System.out.println("Ortalama: "+ogr.ort());
    }
}

2.Soru
import java.util.Arrays;
public class Main{
    public static void main(String[] args){
        int[] sayilar={12,4,19,3};
        Arrays.sort(sayilar);
        System.out.println("En büyük: "+sayilar[sayilar.length-1]);
    }
}

3.Soru
public class Main{
    public static void main(String[] args){
        try{System.out.println(8/0);}catch(Exception e){System.out.println("Sıfır hatalı");}
    }
}


4.Sorupublic class Main {
    public static void main(String[] args) {
        new Thread(() -> {
            try {
                Thread.sleep(2000);
                System.out.println("Merhaba Dünya!");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }).start();
    }
}

4.Soru
interface Islem{int yap(int a,int b);}
public class Main{public static void main(String[] args){
    Islem t=(a,b)->{return a+b;};
    System.out.println("Sonuç: "+t.yap(10,2));
}}


5.Soru
interface Kare{double hesapla(int s);}
public class Main{public static void main(String[] args){
    Kare k=s->Math.pow(s,2);
    System.out.println("Kare: "+kx.hesapla(7));
}}
 
 6.soru 

 public class Main{public static void main(String[] args){
    int[] sayi={1,2,3,4,5};
    for(int s:sayi) System.out.println(s+"^3="+(s*s*s));
}}

7.Soru
public class Main{public static void main(String[] args){
    String metin="Merhaba"; String ters="";
    for(int i=metin.length()-1;i>=0;i--) ters+=metin.charAt(i);
    System.out.println(ters);
}}

8.Sorupublic class Main{
    static void fonksiyon(){
        String gizli="selam";
        System.out.println("İçeride: "+gizli);
    }
    public static void main(String[] args){
        fonksiyon();
        
    }
}


9.Soruinterface Yaz{void yaz();}
public class Main{public static void main(String[] args){
    int sayi=15;
    Yaz y=new Yaz(){public void yaz(){System.out.println("Sayı: "+sayi);}};
    y.yaz();
}}


10.Soru
public class Main{public static void main(String[] args){
    int sayi=100;
    {int sayi=50; System.out.println("İçte: "+sayi);} // hata: aynı isim olmazsa
    System.out.println("Dışta: "+sayi);
}}