1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 |
/****author: Bindiya Patil****/ /****forEach()method****/ package program; import java.util.ArrayList; import java.util.List; public class ForEachmethod { public static void main(String[] args) { List<String> fruits = new ArrayList<String>(); fruits.add("Apple"); fruits.add("Orange"); fruits.add("Banana"); fruits.add("Pear"); fruits.add("Mango"); //lambda expression in forEach Method fruits.forEach(str->System.out.println(str)); } } /****functional interface***/ package program; public interface functional_interface { public int add(int a, int b); } /****Lambda Expression****/ package program; public class lambda_expression { public static void main(String[] args) { functional_interface d2=(a,b)-> (a+b); System.out.println(d2.add(10, 20)); } } /***Stream API*****/ package program; import java.util.ArrayList; import java.util.List; public class Stream_API { public static void main(String[] args) { List<String> names = new ArrayList<String>(); names.add("Ajeet"); names.add("Negan"); names.add("Aditya"); names.add("Steve"); //Using Stream and Lambda expression long count = names.stream().filter(str->str.length()<6).count(); System.out.println("There are "+count+" strings with length less than 6"); } } |