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Please post you're code and explain how you came to this answer. Must be solved in java.

This assignment presents multiple problems that must be solved recursively. While some problems might be solved easily with iteration the goal is to get a sense of solving problems recursively. Each problem has an accompanying class file that contains tests to validate your solution as well as the method or methods to implement for each problem. You may implement any additional helper methods to help you solve the problem so long as iteration is not used except where specified. You may not change the initial method header. Problem 3 - Negation (15 points) Implement a method which takes an array of 1's and O's. You should turn all 1's to 0's and all O's to 1 's. This should be done on the original array. No additional arrays should be used. If the array is empty, then nothing should happen. Example Input - [0,0,1,1,0,1,0,1,1,1] After the method runs the array should become [1,1,0,0,1,0,1,0,0,0]