TypeintcharReturn Method Parameter listwhite (true){ICS 3U- 16 Math Return Methods Timeline: 3 classeslength, width,Variable NameMain MethodMathReturn Method m = new Math ReturnMethod{m.main Menu ();if (m. choice == >>m. instructions3else if (m. choice == JS) == ~= (0¹).m.ask Data (1;3m. display (2)goodbye DjEach student will be marked on the followingclass name: reflects purpose of programorganization of the output screens & errortrapsalgorithmic solution of process/errortraps KISS!!!program executes correctly regardless of planproper program comments (following Programming Style)proper methods, constructor and main method, a window titleuses Message or JOptionPane for error dialog boxesprivate black box return method(s)you may not create any extra java classescorrect programming of all errortraps -uncrashable!!!proper access levels for all methods & variables.output will be interesting and colourful with unique graphics!English, grammar & output design!10 (T)Both sides must be signed BEFORE using a computer!Black box Return Methodprivate int area Answer (char choice, int length, int width, int none){area Answer = (length x width)return area Answer;Folder Name: Your Name 16 Write a program that calculates the area of a triangle, square or oval (without using any built-in math or String methods orcasting/transfer methods). You may only use the basic arithmetic operators: + -/*.The black box return method will be calledarea (char, int, int, int). Your program should have nine methods: area, title, splashScreen, intructions (menu option),pause Program, mainMenu, askData, display and a goodbye. All input must be errortrapped! Each major screen should beindicated as a separate box with arrows to indicate program direction. Each errortrap will be shown separately in its own box witharrows indicating the placement of the trap. Errortraps must be linked to a specific variable. Variables may have more than oneerrortrap. The user may only exit in the mainMenu. The user may rerun the program until they choose to exit.menu Write the OUTPUT SCREENS below and have this page initialled before continuing.Calculation of the area.to go to the instructions1. Press2. Press3. Press4. Press is to find the area of a square5. Press o to find the area of a ovalto go to the programto Pind the area of a trianglePlease enter², ², 5, 6instructionso;This program is used to ask if youwant to find the area of a triangle,Square and oval. It will ask to inputthe appropriate. and the it willcalculate the area.↓Good ByeThank You for attending and participating inyou again. Bye.the programme.SeeAsk Data();Enter length: 6Enter width: 619Enter an integer pleaselength Entered: 6width Entered: 6Area of triangle: 36Jdisplay();

I have written code below: Based on the choice the method is called for printing the instruction,…

int char length, width, turn Method m = ite (true) n.main Menu (); cm. choice == m.askData (1; display ( m. goodbye D Main Method new Hath ReturnMethod m. instructions else if (m. choice == 15) == ³²=¹0¹)

int char length, width, turn Method m = ite (true) n.main Menu (); cm. choice == m.askData (1; display ( m. goodbye D Main Method new Hath ReturnMethod m. instructions else if (m. choice == 15) == ³²=¹0¹)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Using C# create a console app doing the following Write a method that takes two integers and displays their sum. Write a method that takes five doubles and returns their average. Write a method that returns the sum of two randomly generated integers. Write a method that takes three integers and returns true if their sum is divisible by 3, false otherwise. Write a method that takes two strings and displays the string that has fewer characters. Write a method that takes an array of doubles and returns the largest value in the array. Write a method that generates and returns an array of fifty integer values. Write a method that takes two bool variables and returns true if they have the same value, false otherwise. Write a method that takes an int and a double and returns their product. Write a method that takes a two-dimensional array of integers and returns the average of the entries.
public static char start(char key) {Scanner console = new Scanner(System.in);String prompt = "Enter 'q' to quit. Any other key to continue...";double height;double weight;System.out.println("Enter something before you start : >>>>");while (key != 'q'){height = getHeight(console);weight = getWeight(console);displaySummary(height, weight);//prompt to quitSystem.out.println();System.out.print(prompt);key = console.next().charAt(0);}return key;} How can I test this one in the J-unit test?? Is it testable?
How many times is numberOfStudents() called if main() calls numberOfStudents(9)? public static void number0fStudents(int num) { if (num >= 10) { System.out.println(num); } else { System.out.print("Bye"); number0fStudents(num+1); } } 1 10
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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.
C++ program Write a method that displays information about a movie. The method accepts the movie title, running time in minutes and the release year as arguments. Provide a default value for the running time so that if you call the method without minutes, it defaults to 90. Write a main() method that demonstrates you can call the method with two or three arguments. Save the file as Movie.cpp
8) Now use the Rectangle class to complete the following tasks: - Create another object of the Rectangle class named box2 with a width of 100 and height of 50. Note that we are not specifying the x and y position for this Rectangle object. Hint: look at the different constructors) Display the properties of box2 (same as step 7 above). - Call the proper method to move box1 to a new location with x of 20, and y of 20. Call the proper method to change box2's dimension to have a width of 50 and a height of 30. Display the properties of box1 and box2. - Call the proper method to find the smallest intersection of box1 and box2 and store it in reference variable box3. - Calculate and display the area of box3. Hint: call proper methods to get the values of width and height of box3 before calculating the area. Display the properties of box3. 9) Sample output of the program is as follow: Output - 1213 Module2 (run) x run: box1: java.awt. Rectangle [x=10, y=10,width=40,height=30] box2: java.awt.…
C# Part 1: In your program, write a method that accepts a positive integer and returns true if the number is a prime number and false otherwise. Note that 2 is the only even prime number. An odd integer is prime if it not divisible by any odd integer less than or equal to the square root of the number. Part2: A prime number whose reversal is also a prime number is called emirp. For example, 11, 13, 79 and 359 are emirps. Write a program that outputs to a ListBox the first 100 emirps. Your program must contain the method from Part 1 that returns true if a number is prime; false otherwise and another method that returns the reversal of a positive number. You can reverse the integer in the following way: • Convert the integer into a string value = num.ToString(); • Use the following code to reverse the integer string newNum = “”; for (int l = value.Length; l > 0; l--) newNum = newNum + value[l-1]; Also, your program should have a TextBox that will accept a positive integer from the…
Charge Account ValidationCreate a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers:5658845 4520125 7895122 8777541 8451277 13028508080152 4562555 5552012 5050552 7825877 12502551005231 6545231 3852085 7576651 7881200 4581002These numbers should be stored in an array. Use a sequential search to locate the number passed as an argument. If the number is in the array, the method should return true, indicating the number is valid. If the number is not in the array, the method should return false, indicating the number is invalid.Write a program that tests the class by asking the user to enter a charge account number. The program should display a message indicating whether the number is valid or invalid.
The area of a pentagon can be computed usingthe following formula: Write a method that returns the area of a pentagon using the following header:public static double area(double side)Write a main method that prompts the user to enter the side of a pentagon anddisplays its area. Here is a sample run:Enter the side: 5.5 ↵EnterThe area of the pentagon is 52.04444136781625
The area of a rectangle can be computed using the following formula: area = width * height; Write a method that returns the area of a rectangle using the following header: public static double getArea(double width, double height) Write a main method that prompts the user to enter the width and height of a rectangle and displays its area. Input example: 1.2 3.4 Output example: The area of the rectangle is 4.08
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