please help! Simple Java

You have the following class. class Circle \{ private double radius; Circle() \} Circle (double r) \{ this.radius = r; \} double getArea() \{ return 3.14 radius radius; \} Write a method that will return the number (count) of Circle objects in an array that has larger area than a given Circle object. You must use the following method header. staticintcountLarger(Circle[]r,Circlegiven){ Write a method that will reverse the content of an array of Circle object without creating any new Circle object and without any new array. That is, the method cannot contain any "new" syntax. You must use the following method header. staticvoidreverseArray(Circle[]r){ Write a method that will merge two given arrays of Circle objects and return the merged array. In the process, the two given arrays cannot be destroyed. You must use the following method header. static Circle[] merge(Circle[] c1, Circle[] c2)\{ Write a method that takes an 1D array of Circle objects as argument. The method prints the area of the circle objects when the area is odd. The method does not return anything (void). static void printodd(Circle[] c1) Write a method that takes an 1D array of Circle objects as argument. The method prints the sum of area of all Circle object. The method returns the sum. Use the following method header static double sumArea(Circle[] c1)