Java 8 Lambda Kullanimi

Parametreli methodlarda lambda kullanimi
(argument-list) -> {body}

Asagidaki ornekte ilk once klasik yontemle instance olusturarak, daha sonra ise lambda ile gosterim yapilmistir.
@FunctionalInterface
interface ExampleInterface{
        public int exampleMedhot(int a1, int a2);
}

public class Test1 {
        public static void main(String[] args){
     ExampleInterface e1 = new ExampleInterface() {
             
             @Override
             public int exampleMedhot(int a1, int a2) {
          return a1 + a2;
             }
     }; 
     
    System.out.println(e1.exampleMedhot(3, 5));
    
    
    ExampleInterface e2 = (int a1, int a2) -> {
            return a1 + a2;
    };
    
    System.out.println(e2.exampleMedhot(3, 5));
        }
}

Metod parametre almadigi zaman ise asagidaki sekilde lambda kulanilir.


@FunctionalInterface
interface ExampleInterface{
        public int exampleMedhot();
}

public class Test1 {
        public static void main(String[] args){
    
     ExampleInterface e2 = () -> {
  return 8;
     };
     
     System.out.println(e2.exampleMedhot());
        }
}

Arrays.asList("a1", "a2", "a3").forEach(item -> {
  System.out.println(item);
     });</pre>