Question: Given a list of integers a, write a method that returns a new list with all the elements of a with sign negated, i.e., positive

Given a list of integers a, write a method that returns

Given a list of integers a, write a method that returns a new list with all the elements of a with sign negated, i.e., positive integers become negatives and negative integers become positives.

static List negateAll(List a) Given a list of integers a, write a method that returns a new list with all the elements of a with sign negated, i.e., positive integers become negatives and negative integers become positives. Example: [2, -5, 8, 0] ==> [-2, 5, -8, 0]

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