Learning Jupyter 5 - Second Edition

Java streams

Java streams was a significant improvement with Java 8. Now, Java is able to deal with streams of information flow in a functional manner. In this example, we will use stream in several small examples to show the power of the feature.

The code snippet we are using is as follows:

public class MyStreams { 
 
    public static void main(String[] args) { 
          List<Integer> numbers = new ArrayList<Integer>(); 
          numbers.add(3); 
          numbers.add(-1); 
          numbers.add(3); 
          numbers.add(17); 
          numbers.add(7); 
           
          System.out.println("Numbers greater than 2"); 
          numbers.stream() 
                .filter(number -> number > 2) 
                .forEach(number -> System.out.println(number)); 
           
          System.out.println("number size = " +            numbers.stream().count()); 
           
          Integer big = numbers.stream().max((n1,n2) ->  Integer.compare(n1, ...