• 5. Given the corner points of a triangle (x1, y1), (x2, Y2), (x3, y3), compute the area.Hint: The area of the triangle with corner points (0, 0), (x1, yı), and (x2, y2) is|¤1· Y2 – 2 · Yı|Geometry.java1 public class Geometry2 {3/**Computes the area of a triangle@param x1 the x-coordinate of the first corner@param yl the y-coordinate of the first corner@param x2 the x-coordinate of the second corner@param y2 the y-coordinate of the second corner@param x3 the x-coordinate of the third corner@param y3 the y-coordinate of the third corner@return the area of the triangle*/public static double triangleArea (double x1, double y1,double x2, double y2, double x3, double y3){double area = (Math.abs (x1*y2 - x2*yl))/2;return area;4.6.10111213141516171819 }CodeCheckReset

In the Geometry class – Create a function to calculate the area of a triangle. In the Main class –…

Answered: • 5. Given the corner points of a…

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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Lab Goal : This lab was designed to teach you more about recursion. Lab Description : luckyThrees will return a count of the 3s in the number unless the 3 is at the start. A 3 at the start of the number does not count. /* luckyThrees will return the count of 3s in the number* unless the 3 is at the front and then it does not count* 3 would return 0* 31332 would return 2* 134523 would return 2* 3113 would return 1* 13331 would return 3* 777337777 would return 2* the solution to this problem must use recursion*/public static int luckyThrees( long number ){} Sample Data : 331332134523311313331777337777 Sample Output : 022132
Problem 1: Complete the sumOfDiagonals method in SumOfDiagonals.java to do the following: The method takes a 2D String array x as a parameter and returns no value. The method should calculate and print the sum of the elements on the major diagonal of the array x. In order to have a major diagonal, the array passed into the method should be a square (n-by-n), if it's not a square your program should handle that situation by throwing an exception. (Do Not worry about ragged arrays) If the array is a square, but there is a non-integer value on the major diagonal, your program should handle that situation by throwing an exception. When handling the exceptions, be as specific as you can be, (i.e. Do Not just use the Exception class to handle all exceptions in one catch block). Make the proper calls to the sumOfDiagonals method from the main method to test your sumOfDiagonals method on all the String arrays provided in the main method.
1) Write a method that returns the range of an array of integers. The range is the difference between the highest and lowest values in the array. The signature of the method should be as follows. public static int computeRange(int[] values)
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public class Course{String name;String dept;int number;public Course (String n, String d, int n){name = n;dept = d;number = n;}public String toString(){return "Course " + name + " in " + dept + " #: " + number;}public static void main (String [] args){Scanner in = new Scanner(System.in);add 10 lines using the scanner and saving them as strings The input for each line will be entered a String, a space, another String, and an int. Parse the input string into those three items and make an instance of Course. Add the new Course instance to a generic ArrayList of Course. print out each Course in the ArrayList.
// The language is java Part I: Use of recursive method (4 points for students who need recursion/extracredit) Description: Code a class called RecursiveMultiply in which it will accept two integer arguments entered from user; pass these integers to a recursive method that returns the multiplication result of these two integers. The multiplication can be performed as repeated addition, for example, if two integers are 7 and 4: 8 * 4 = 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 You will write the application with GUI and recursion to display the result in a noneditable text field, based on the user’s entry from two text fields, while an OK button is pressed. You will utilize the exception handling code as you did in your Lab 4 and Lab 5 to verify if data entered in the text fields are valid (numerical and positive data only). You will make your own decision if there is any explanation that is not described in this specification. Finally, code a driver program that will test your class…
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Arrays of objects. Java programming: How to create and work with an array of objects in Java I wanted to know that supppose that I have 100 employees who are paid on an hourly basis and I need to keep track of their arrival and departure times, and I have also created the class Clock to implement the time of day in a program. I also know that I will use two arraays; one called arrivalTime and the other array called departure time. Each of these arrays will have 100 elements and each element will be a reference variable of Clock type.. For example Clock[] arrival = new Clock[100]. My qeustion is how do I create the objects arrival and departure. Then how could I use the methods f the class clokc. Thank you
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PYTHON!! class Triangle: def __init__(self,sides): self.a = sides[0] self.b = sides[1] self.c = sides[2] if __name__ == '__main__': t = Triangle([3,6,2]) print(f'Side1 = {t.a}') print(f'Side2 = {t.b}') print(f'Side3 = {t.c}') Based on the code. Assume you are in the Triangle class: Create a method called calcArea. It will calculate and return the area of the triangle using this formula:

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