Apex Class to Multiply two numbers and show in the Console and please add proper comments and output?

TODO15 Create the CosineSimilarity by following the below instructions: Define the class CosineSimilarity using the class keyword. Define the __init__() method which takes in three arguments self, x, and z and saves them as class variables. These two arguments will be the vectors in which the cosine similarity will be computed. Define a method called compute_angle() that takes in no arguments other than self (remember self is a required argument for methods). Within the compute_angle() method compute the angle between two vectors and return the answer in degrees. Use the following equation to compute the angle between two vector. $$ \theta = \text{arccos}(\frac{\mathbf{x} \cdot \mathbf{z}}{||\mathbf{x}||_2 ||\mathbf{z}||_2}) $$ Hint 1: Recall from the quiz that $\cdot$ represents the dot product and $||\cdot||_2$ represents the L2 norm $$ ||\mathbf{x}||_2 = \sqrt{x_1^2 + x_2^2 + ... + x_n^2} = \sqrt{\mathbf{x} \cdot \mathbf{x}} $$ where a vector dotted with itself is the same as...

Task 1:The first task is to make the maze. A class is created called Maze, in which a 2D array for the maze is declared. Your job is to implement the constructor according to the given javaDoc. When you completed this task, write a set of Junit test case to test your code.As you probably noticed, the maze is defined as a private variable. The second job for you is to write an accessor(getter) method that returns the maze. Other information about what is expected for this method is given in the starter code. public class PE1 { MazedogMaze; /** * This method sets up the maze using the given input argument * @param maze is a maze that is used to construct the dogMaze */ publicvoidsetup(String[][]maze){ /* insert your code here to create the dogMaze * using the input argument. */ }

PROVIDE THE PYTHON SOURCE CODE FOR THE FOLLOWING Write a Circle class that represents the concept of a Circle as a tuple (x,y,r) where x and y are the centre and r is the radius of the circle. Create a circle object and Initialize the tuple values in the __init__() method Write a member function that takes another circle object and calculates the distance between self and the other circle object. i.e. Dist(x1,y1,x2y2) Write another member function that takes another circle object and checks whether the two circles collide or not. [Hint: If the distance between the centres of two circles is less than or equal to the sum of the radius of the two circles, then they are colliding. i.e. Dist(x1,y1,x2,y2) <= sum(r1+r2)]

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PLEASE WRITE THE CODE WITH USER ERROR AND ALL ACCEPTABLE ENTRIES!!!

Help me solve this in Java, don't make it to complicated.

Please!!

Using an appropriate package and test class name, write the following tests for GamerProfile's constructor: testNameShouldNotBeNull testNameShouldNotBeEmpty testNameShouldNotBeBlank testShouldCreateValidGamerProfile Hint: use assertTrue or assertFalse for getters involving boolean values Hint: get the game list from the gamer and call the list's isEmpty along with an assertTrue or assertFalse, as appropriate.GamerProfile:public class GamerProfile { private String userName; private boolean pvpEnabled; private boolean online; private ArrayList<GameInfo> gameLibrary; public GamerProfile(String userName) { this.userName = userName; this.pvpEnabled = false; this.online = false; gameLibrary = new ArrayList<GameInfo>(); } // Getter for the getUserName variable public String getUserName() { return userName; } // Getter for the PvpEnabled...

JAVA:

Request: Can you please help me by providing me with a step-by-step algorithm as to how to answer the following question? Thank you. Question: Using interfaces, you can specify similar behaviors for possibly disparate classes. Governments and companies worldwide are becoming increasingly concerned with carbon footprints (annual releases of carbon dioxide into the atmosphere) from buildings burning various types of fuels for heat, vehicles burning fuels for power, and the like. Many scientists blame these greenhouse gases for the phenomenon called global warming. Create three small classes unrelated by inheritance—classes Building, Car, and Bicycle. Write an interface CarbonFootprint with a getCarbonFootprint method. Have each of your classes implement that interface so that its getCarbonFootprint method prints out an appropriate message (e.g., this message from Building CarbonFoot). Write an application that creates objects of each of the three classes and one interface reference...

***********Instructions******************************************* Complete the following using the attached diceType class as the base: Create a derived class that allows you to reset the number of sides on a die. (Hint: You will need to make one change in diceType.) Overload the << and >> operators. Note: You should test each step in a client program. ****************************************************************** //diceType.h #ifndef H_diceType#define H_diceType class diceType{public:diceType();// Default constructor// Sets numSides to 6 with a random numRolled from 1 - 6 diceType(int);// Constructor to set the number of sides of the dice int roll();// Function to roll a dice.// Randomly generates a number between 1 and numSides// and stores the number in the instance variable numRolled// and returns the number. int getNum() const;// Function to return the number on the top face of the dice.// Returns the value of the instance variable numRolled. private:int...

3- Create a class named Player with a default name as "player", a default level as 0, and a default class type of "fighter". Feel free to add any other attributes you wish! Create an instance method in the Player class called attack that takes another player as a parameter. This function should compare the level of the two players, and return whether the player won, lost, or tied. Finally create a loop that allows the user to input a name and a class type for two players; the level of both players should be determined at random (between 1 and 99). Print out the name and attributes of each player, and have the first player attack the second. Print whether the player won, lost, or tied. Ask if the user wants to try again. (Python code)