Chapter 19.3, Problem 12SCP

Explanation of Solution

Code to count the number of even integers in a stream:

//declare the "sum" variable

int evens = (int) Arrays.stream(a)

    //calculate the "n" value

    .filter (n -> n%2 == 0)

    //count the elements

    .count ()

Explanation:

• Initially declare the “evens” as an integer type variable and set an argument as “a” to the array stream...