Write a java program that uses the following java methods and prints out the result of each method

 Exercise 1: Write a java program that uses the following java methods and prints out the result of each method. First, you need to declare the following variable and assign the values to them

Integer variable x = -8Double variable y = 9.4,  Integer variable z = 36,  Integer variable r = 3,   Integer variable k = 4.

Abs(x)

floor(y)

ceil(y)

sqrt(z)

pow(r, k)

max(r, k)

min(r, k)

Exercise 2: In the java program that created in Ex1, write the implementation of the method multiply() that takes two integers, multiplies them and print the result

Exercise 3: Modify the method in Ex2 to return the result of multiplication