A class-level variable Da. holds return values O b. holds input values Oc. is only scoped to methods. Od. is mostly used for constants, variables that never change from their initial value De. can be used in computations Choose all that apply.
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- Only variable definition/initialization can be done outside of a method. Everything else should be inside a method. true or falseread carefully. object must be passed to method not variablesLocal variables are defined in the method and scope of the variables that exist inside the method itself True False
- Value-returning methods must pass parameters. -True or -FalseIn C# create a calculator but make it for Fractions. Include a fraction class that overloads the +, -, *, and / operators.Please use Python for this problem: Make sure code is in correct format so it can run in Python without any errors and has the correct answer. When you are finished, test your solutions using a doctest: Develop a class Volume that stores the volume for a stereo that has a value between 0 and 11. Usage of the class is listed below the problem descriptions. Throughout the class you must guarantee that: The numeric value of the Volume is set to a number between 0 and 11. Any attempt to set the value to greater than 11 will set it to 11 instead, any attempt to set a negative value will instead set it to 0. This applies to the following methods below: __init__, set, up, down You must write the following methods: __init__ - constructor. Construct a Volume that is set to a given numeric value, or, if no number given, defaults the value to 0. (Subject to 0 <= vol <=11 constraint above.) __repr__ - converts Volume to a str for display, see runs below. set – sets the volume to…
- Exercises: PolymorphismProblem 1. VehiclesWrite a program that models 2 vehicles (Car and Truck) and will be able to simulate driving and refueling them inthe summer. Car and truck both have fuel quantity, fuel consumption in liters per km and can be driven givendistance and refueled with given liters. But in the summer both vehicles use air conditioner and their fuelconsumption per km is increased by 0.9 liters for the car and with 1.6 liters for the truck. Also the truck has a tinyhole in his tank and when it gets refueled it gets only 95% of given fuel. The car has no problems when refueling andadds all given fuel to its tank. If vehicle cannot travel given distance its fuel does not change.Input On the first line - information about the car in format {Car {fuel quantity} {liters per km}} On the second line – info about the truck in format {Truck {fuel quantity} {liters per km}} On third line - number of commands N that will be given on the next N lines On the next N lines –…Design a class that holds the following personal data: name, address, age, and phone number. Write appropriate accessor and mutator methods. Also, design a program that creates three instances of the class. One instance should hold your information, and the other two should hold your friends’ or family members’ information. very basic Algorithm in pseudocode not python. Use fictitious information.Java - Access Specifiers Create a class named Circle that has attributes radius, area, and circumference and make the attributes private. Make a public method that sets the radius and a method that prints all attributes. Ask the user input for radius. Note: Use the PI from the math functions Inputs A line containing an integer 10 Sample Output Radius: 20 Area: 1256.64 Circumference: 125.66
- A main method can be placed inside a class definition. O True O FalseWrite binary calculator java code using object-oriented programming concept. The calculator should +,-,* and / The calculator should convert from binary to decimal, then decimal to binary. The calculator should also apply for hexadecimal the same procedure as the binary calculator Use one of the four pillars of Object-oriented programming. And Don't only use the main method. https://www.calculator.net/binary-calculator.htmlProblem: Bugs are simple creatures that only know how to walk towards other bugs. Bugs maintain information about their (x, y) position; by which it can tell if they are standing next to other bugs. Watch the following video: bug movement. Create a java project that simulate bugs movement. You need to write a class “Bug" that models a bug moving along a straight line and it can turn to change its direction counterclockwise (i.e. 90 degree to the left; north → west → south → east → north). In each move, its position changes by one unit in the current direction. Details of the "Bug" class is described below. Your simulator should read information of an unknown number of “Bug" objects from an input file called “Bugs.txt". Each line represents a bug and the initial position and facing direction of this particular bug. Keeping the first bug position as a reference the simulator should move the second bug next to the first bug forming a cluster and its final position and direction should be…