Given an array of integers starting from 1, return the integer missing in the incremental sequence. Return 0 if there is no missing integer in the sequence. public class FindMissingInteger{ public static int solution(ArrayList numbers){ // ↓↓↓↓ your code goes here ↓↓↓↓ return 0; }

Please help with this java problem

Needs to be written in java and completed using "for loops" or "nested for loops" and in one program just seperate methods: Write a program that calls these three methods.   method 1 should print:   5 4 3 2 1 4 3 2 1 3 2 1 2 1 1   method 2 should print:   1 2 3 4 5 1 2 3 4 1 2 3 1 2 1   method 3 should create and array and store 10 multiples of 5 and print it out. Use for loop to generate the multiples and then print them out using a second for loop.

How do I code: public static int numberOfBelowAverageElements(int[] arr) public static int numberOfAboveAverageElements(int[] arr) public static void rotateElements(int[] arr) in java?