Please code the following in Java:

A private method with signature

private void collectTerms()

which collects like terms of this Polynomial. E.g. //This method modifies the implicit parameter

Before: x^2 + 3x^2 + 2x^2 + 3x^3 + 5x^4 + 2x^4

After: 6x^2 + 3x^3 + 7x^4

Please assume that the polynomial is the implicit parameter. Each polynomial is a linked list of "Term" objects. Each Term is simply an object with an exponent and a coefficient parameter

Please comment the code throughly

Please solve this using only Node manipulation and LinkedList methods.