Lambda expression.in Java 8

Lambda expression.in Java 8

 In below example we use the usual way of creating lambda expression using arrow syntax and also we used a brand new double colon (::) operator that Java 8 has to convert a normal method into lambda expression.

//Old way: List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7); for(Integer n: list) {     System.out.println(n); } //New way: List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7); list.forEach(n -> System.out.println(n)); //or we can use :: double colon operator in Java 8 list.forEach(System.out::println);

by: Suvojeet Pal