3. Define a Pair class using Java Generics framework a. Properties: first, second b. Constructors: Create 2 different constructor with different initialization parameters c. Methods: setFirst(), setSecond(), getFirst(), getSecond(); d. Test Pair class print out the value of Pair instance: i. Define a Pair instance and assign (10,10.1) to the pair; ii. Define a Pair instance and assign (8.2, "ABC") to the pair; iii. Define an array holding[] of Pair class. 1. holding has 100 elements; 2. Assign (int, double) to array by using loop -> (0, 100.0), (1, 99.0), (2, 98.0), ..., (99, 1.0). 1. Follow the class instruction and complete the Cat class. Create class Cat a. Add properties: i. What characteristics do they have? Name, age, color, type (domestic / feral), etc. (secure the data) ii. What color(s) might they have? White, cream, fawn, Cinnamon, Chocolate, Red, Lilac, Blue, Black, Lavender, etc. b. Add methods: eat()), play(), etc. c. Constructors? i. A class provides a special type of methods, known as constructors, which are invoked to construct objects from the class ii. Create 2 different constructor with different initialization parameters d. How to get the number of cats? Add a static variable and a static method to print out the number of cats. e. Test Cat class by creating 3 Cat instances: i. Each cat should have different properties. ii. Test all the methods. iii. Print out the number of cats. 2. Define a BankAccount class that has: accNum (int) Balance (double) ● a constructor four methods: o deposit() withdraw() O o getAccNum() o getBalance() Implement a test class TestBankAccount that Initialize an BankAccount instance with initial values: deposit: 500.0 ● accNum: 1001 ● Deposit 30.50 Withdraw 50.0 Print out the remaining balance.