Chapter 19.4, Problem 17SCP

Explanation of Solution

Reason:

The “a” and “b” are the free variables and “n” is the bound variable. The given code is not allowed to change the free variable “a”.

The code could be modified as follows:

//declare the free variables

int a = 10;

int b = 20;

//lambda function

int sum = IntStream.of (1, 2, 3, 4, 5)

    //map function

    ...