Write a public static method name sumAll that takes in 2 arguments int a, int b, and returns the sum of all values between those two numbers inclusive. Remember a can be less than b, b might be less than a, or they may be equal. They can also be positive or negative. Example: sumAll(2,5); int returned by method: 14 Example: sumAll(5,2); int returned by method: 14 Example: sumAll(3,3); int returned by method: 6 Example: sumAll(3,5); int returned by method: 12 Example: sumAll(-4,3); int returned by method: -4 Example: sumAll(-4,2); int returned by method: -7 Example: sumAll(-5,-2); int returned by method: -14 Example: sumAll(-5,2); int returned by method: -12 Example: sumAll(-2,5); int returned by method: 12 Example: sumAll(-5,-3); int returned by method: -12 Example: sumAll(3,-5); int returned by method: -9 Example: sumAll(-3,5); int returned by method: 9

2. A pentagonal number is defined as n(3n-1)/2 for n = 1, 2, ..., etc.. Therefore, the first few numbers are 1, 5, 12, 22, ... . Write a method with the following header that returns a pentagonal number: %3D public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.

In this program, create a method with the following signature: public static double getAverage(double d1, double d2, double d3, double d4, double d5) This method will accept five doubles and return the average. Also in program, create a method with the following signature: public static char determineGrade(double avg) This method will take an average, then return the corresponding letter grade. Write in java and use test case# as an example.

In python and include doctring: First, write a class named Movie that has four data members: title, genre, director, and year. It should have: an init method that takes as arguments the title, genre, director, and year (in that order) and assigns them to the data members. The year is an integer and the others are strings. get methods for each of the data members (get_title, get_genre, get_director, and get_year). Next write a class named StreamingService that has two data members: name and catalog. the catalog is a dictionary of Movies, with the titles as the keys and the Movie objects as the corresponding values (you can assume there aren't any Movies with the same title). The StreamingService class should have: an init method that takes the name as an argument, and assigns it to the name data member. The catalog data member should be initialized to an empty dictionary. get methods for each of the data members (get_name and get_catalog). a method named add_movie that takes a Movie…