Required Tasks reair dowing mectiod-. getFirst, getSecond, setFirst and setSecond. (100 points) 1. Define a Pair class that has: Two elements (first, second), A constructor and Four methods(getFirst, getSecond, setFirst and setSecond). Implement test class TestPair that . Define an array(length is 10) of Pair type. 2. Type of first - int, type of second - double. . Set the value of array.first: (0, 1, 2,..., 8, 9) . Set the value of array.second: (9.0, 8,0,... , 1.0, 0.0). Print out the array. 1.2 Please Modify the homework1.1 by using Java Generics. (Declare two elements by using formal type parameters). (Extra 50 points)