Question

i>Write a program to find the area of a circle,rectangle and a square ii>Write a program to find the diagonal of a rectangle iii>The distance between two points A and B of a straight line cwhose coordinates are and are calculated as AB=root over(y2-y1)+(x2-x1) Write a program in java to calculate the distance between the two points by taking the coordinates as input

Answer 1

HELLO!

Here's the Java code for your problems:

(i)

// Area of circle, rectangle and square

class Area

{

public static void main(r, l, b, a)

{

double cir = 3.14 * r * r;

double rect = l * b;

double sq = a * a;

System.out.println("Area of circle: " + cir + "\nArea of rectangle: " + rect + "\n Area of square: " + sq);

}

}

(ii)

// Diagonal of rectangle

class Diagonal

{

public static void main(l, b)

{

double diag = Math.sqrt((l*l) + (b*b));

System.out.println("The diagonal of the rectangle is: " + diag);

}

}

(iii)

// Distance between two points

import java.util.Scanner;

class Distance

{

public static void main (String args[])

{

Scanner sc = new Scanner (System.in);

System.out.println("Enter the coordinates of the two points: ");

int x1 = sc.nextInt();

int y1 = sc.nextInt();

int x2 = sc.nextInt();

int y2 = sc.nextInt();

double dist = Math.sqrt((Math.pow((y2-y1), 2)) + (Math.pow((x2-x1), 2)));

System.out.println("The distance is: " + dist);

}

}

Thanks!