6- How many parents can a class have in java a) 0 b) 1 c) 2 d) any number
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6- How many parents can a class have in java
a) 0
b) 1
c) 2
d) any number
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- Grey lines (start - 20 & 22-end of code) can NOT be edited. New JAVA code must be in between theses as show on line 21 in image.Java Questions - (Has 2 Parts). Based on each code, which answer out of the choices "A, B, C, D, E" is correct. Each question has one correct answer. Thank you. Part 1 - 9. In Java, composition is said to use __ relationship. A. is-aB. part-ofC. has-aD. both is-a and part-ofE. both has-a and part-of Part 2 - 10. Given the following code, which statement is true? class Water() { ... }class Juice() extends Water { ... }class Apple() { ... }class ApplePie() { Apple a1 = new Apple(); }class AppleJuice() { Apple a1 = new Apple(); Water w1 = newWater(); } A. Juice is a superclass and Water is a subclass.B. ApplePie is a superclass of Apple.C. ApplePie is a composite class that contains an instance of Apple class.D. AppleJuice is a superclass that contains an instance of Apple class and an instance of Water.E. Water is a composite class that contains an instance of Juice.JAVA CODE a vending machine that accepts n number of products entered by the user and n number of coins of any type. The vending machine will return change and say how much balance the user has, it should show the available products and ask the user if they want to insert more money or not, if they want to buy another product or not and if they want to leave or continue shopping
- Problem Statement: The mathematician Conway imagined a game, called game of life, which considered cells that are susceptible to reproduce, disappear, or survive when they obey certain rules. These cells are represented by elements on a grid of squares, where a grid has an arbitrary size. Thus, each cell (except those on the boundaries of the grid) is surrounded by eight squares that contain other cells. The rules are stated as follows: 1. Survival: Each cell that has two or three adjacent cells survives until the next generation.2. Death: Each cell that has at least four adjacent cells disappears (or dies) by overpopulation. Also, each cell that has at most one adjacent cell dies by isolation.3. Birth: Each empty square (i.e., dead cell) that is adjacent to exactly three cells gives birthto a new cell for the next generation.It is worth noting that all births and deaths occur at the same time during a generation. Write a program that simulates this game and displays all successive…JAVA LANGUAGE Body Mass Index Version 2.0 by CodeChum Admin Recall that according to the National Heart, Lung, and Blood Institute of the National Institutes of Health, body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is used to monitor one's health by determining whether one is underweight, overweight, has normal weight or is obese. It is computed based as follows (when using standard weight in pounds and height in inches): BMI = 703 x (weight/(height2)) Furthermore, people with BMI scores that are less than 18.5 are said to be underweight. Those with scores between 18.5–24.9 (inclusive) are of normal weight. Those with scores between 25–29.9 (inclusive) are said to be overweight. And those with scores 30 or higher are obese. Input The input is composed of two positive integers representing the weight in pounds and the height in inches. 140·65 Output A single line containing two values: the computed…Evaluating Postfix Expression The Postfix notation is used to represent algebraic expressions. The expressions written in postfix form are evaluated faster compared to infix notation as parenthesis are not required in postfix. We have discussed infix to postfix conversion in the class. Write a Java program that will input a valid postfix expression. The expression may accept a whole number or a real number. Every operand and operator should be separated by a space. Make sure to trap possible errors.Sample Output (Must be implement in GUI)
- Create the class as shown in Class diagram. day : must be between 1 and 31 month: must be between 1 and 12 year: must be greater than 1900 note....this is a java programmUsing oop in java Create a class “Main” having main method to perform following tasks. Create two objects of Subject class having value “Math, 99.9” and “Physics, 98.9” respectively. Display the values of both objects Change the value of object from 99.9 to 89.9 Compare both objects and display the values of the subject which have lowest score.2-Define a class named Wall . The class should have two private double variables,one to store the length of the Wall and another to store the height . Write Input andoutput function .Add accessor and mutator functions to read and set both variables.Add another function that returns the area of the Wall as double Write programthat tests all your functions for at least three different Wall objects.
- Grade 12 computer science, Please write in Java language Create an Essay class that inherits the Document class. The Essay class should include member constants MIN_WORDS and MAX_WORDS. An essay should be between 1500 and 3000 words. The Essay class should also contain a member method validLength(), which returns true when the Essay object contains between MIN_WORDS and MAX_WORDS and false otherwise. Thank you very much# Coding - Simulate a robot Write a program that simulates the movements of a robot. The robot can have three possible movements: turn right turn left advance The robot is placed on a hypothetical infinite grid, facing a particular direction (north, east, south, or west) at a set of `{x,y}` coordinates,e.g., `{3,8}`, with coordinates increasing to the north and east. Create a Class `Robot` that contains a method `execute` which given a number of instructions will calculate the robot's new position, and the the direction in which it is pointing. ## Example The letter-string "RAALAL" means: Turn right Advance twice Turn left Advance once Turn left yet again Say a robot starts at `{7, 3}` facing north. Running this stream of instructions should leave it at `{9, 4}` facing west. ## Inputs and Outputs The argument of the `execute` is `string` in the format `X Y BEARING COMMANDS`. The method should return a one-liner `string` in the format `X Y BEARING`. In the…python3: Class vs Instance variable Make a class names Foo Add a class variable to foo called x and initialize it to 5 Add an instance variable to foo called y and initialize it to 100 Make an instance of the class, call it f Using Foo., print out the value of x (proper etiquette for class variables) Using f., Print out the value of y (proper etiquette for instance/self. variables) Hint: remember that class variables are the ones where their value is the same for all instances/clones. And instance variable (which you declare inside the __init__ method with the self. preface, are unique to each clone. When you print a class variable the proper way is to use classname . (for example Foo.x) and when you print an instance variable you use the instance handle (for example f.y.)