Design a class called Date. The class should store a date in three integers: month, day, and year.

Create the necessary set and get methods.

Design member functions to return the date as a string in the following formats:

12/25/2012

December 25, 2012

25 December 2012

Input Validation:

Do not accept values for day greater than 30 or less than 1.

Do not accept values for month greater than 12 or less than 1.

Do not accept values for year greater than 2025 or less than 1900.

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Public static int mystery(int a[], int x) {     int c = 0;     for(int i = 0; i < a.length; i++) {        if (a[i] == x) c++;     } return c; }the method counts how many times an integer shows up in an integer array.the c variable is declared in the method to keep track of how many times the certain value has shown up.the for-loop loops through the entire array.the line    if (a[i] == x) c++;   checks if each element of the array is equal to the inputted integer to check. for each number in the array that is equal to the inputted integer x, the c variable will be incremented by 1. otherwise it will do nothing.then c is returned at the end of the loop.for example, if we have, in the main method with the mystery method coded in the class:     int arraytest[] = {2, 23, 23, 23, 3};     int testme = 23;     int count = mystery(arraytest, testme);     system.out.println(count); then the print out will be    3 because there are three 23s in that array.