Write a console application that repeatedly reads data from the keyboard compute

Question

Write a console application that repeatedly reads data from the keyboard computes with it and produces a table of output. For each set of data you will read four numbers representing two points in 2D Cartesian space. The first two items of data represent the (x,y) coordinates of one point and the second two items of data represent the (x,y) coordinates of a second point. After reading the four integers, write them out using traditional coordinate point notation, followed by the distance between them and the volume of a sphere whose radius is equal to the distance between the points. Continue reading and processing data until the user enters four zeros. At that point skip one blank line and display the message "End of Output". The formula for computing the distance between two points (x1,y1) and (x2,y2) is . The formula for computing the volume of a sphere is 4/3pr^3

In addition to the basic processing requirement described, your program must perform the following:

1. Display instructions for using the program when it is started, i.e., what the program does, what kind and how much data to enter each time, and finally how to stop the program.

2. Prompt the user to enter each of the four items of data each time data is needed. The numbers should be integers and contain no more than four digits each. You will read each of the four numbers one at a time from the same line of input.

3. Compute the distance between two points and the volume of the sphere whose radius is equal to the distance between the two points.

4. Display the output as a table. Display appropriate column headers. Display the two points and the distance between them on a single line. Display the volume of the sphere on the next line aligned under the

distance. Use composite format codes to separate the items displayed so they are more readable and properly aligned. The distance and volume data must be displayed with exactly 3-digits after the decimal point.

6. You may use formatted output, i.e., you can use composite formatting (i.e., curly-brace) notation within your program output strings. You may use the ToString-methods with a display code parameter. You may also perform some output without using formatted output. You can use string concatenation for some or all of your output.

Explanation / Answer

Hi, Someone else asked this recently so I'll just copy my response below... static void Main(string[] args) { // new position class Position pos = new Position(); // results double distance = 0.0; double volume = 0.0; // result strings string str_distance = null; string str_volume = null; // print start message Console.WriteLine("**********************************"); Console.WriteLine("* Distance and Volume Calculator *"); Console.WriteLine("********************************** "); Console.WriteLine("This program takes in 4 integer values from the user for coordinates."); Console.WriteLine("These values are input as follows, x1, y1, x2, and y2. From these integers"); Console.WriteLine("(treated as coordinate points) the distance between the two is calculated."); Console.WriteLine("Also, treating the distance as a radius, the volume of a sphere is calculated"); Console.WriteLine("and displayed with the coordinate points and distance results. "); Console.WriteLine("Enter integer values for coordinate points as long as you wish the program to run."); Console.WriteLine("When you want to quit, simply enter 4 0's for x1, y1, x2, and y2 respectively."); Console.WriteLine("The program will then terminate... "); // infinite loop (breaks when condition is met below => all numbers are 0) while (true) { // Get x1 from user Console.Write("Enter x1: "); pos.x1 = Convert.ToInt32(Console.ReadLine()); // Get y1 from user Console.Write("Enter y1: "); pos.y1 = Convert.ToInt32(Console.ReadLine()); // Get x2 from user Console.Write("Enter x2: "); pos.x2 = Convert.ToInt32(Console.ReadLine()); // Get y2 from user Console.Write("Enter y1: "); pos.y2 = Convert.ToInt32(Console.ReadLine()); // if all zeros, then return (exit) if (pos.Zeros()) { Console.WriteLine(); return; } // calculate distance distance = pos.GetDistance(); // calculate volume volume = pos.GetVolume(distance); // convert doubles to correctly formatted strings str_distance = String.Format("{0:0.000}", distance); str_volume = String.Format("{0:0.000}", volume); // print results in table form using arguments and formatting Console.WriteLine(" Point #1 Point#2 Calculations"); Console.WriteLine("({0},{1}) ({2},{3}) Distance = {4}", pos.x1, pos.y1, pos.x2, pos.y2, str_distance); Console.WriteLine(" Volume = {0} ", str_volume); } } } // Class used to hold values and perform calculations class Position { // coordinate values/integers public int x1; public int x2; public int y1; public int y2; // Constructor public Position() { this.x1 = 0; this.x2 = 0; this.y1 = 0; this.y2 = 0; } // Calculates distance, returns as a double public double GetDistance() { double x = 0.0; double y = 0.0; // (x2 - x1)^2 x = Math.Pow((this.x2 - this.x1), 2.0); // (y2 - y1)^2 y = Math.Pow((this.y2 - this.y1), 2.0); // sqrt( (x2 - x1)^2 + (y2 - y1)^2 ) return (Math.Sqrt(x + y)); } public bool Zeros() { // if all zeros, then return true return (((this.x1 == 0) && (this.x2 == 0) && (this.y1 == 0) && (this.y2 == 0))); } public double GetVolume(double radius) { // (4/3) * pi * r^3 return ((4.0 / 3.0) * Math.PI * Math.Pow(radius, 3.0)); } };

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