Question

1 Write a java program which calculates the area of either a Triangle or a Rectangle. Use Scanner to take an input field to tell you if the area to be calculated is for a Triangle or is for a Rectangle. Depending on that input - the program must call either the Triangle method or the Rectangle method. Each of those methods must receive 2 input fields from the user - one for base and one for height in order to calculate the area and then to print that area and the height and base from inside the method.

Answer 1

A Java program which calculates the area of either a Triangle or a Rectangle. Use Scanner to take an input field to tell you if the area to be calculated is for a Triangle or is for a Rectangle.

Step-by-step explanation:

Use Scanner to take an input field to tell you if the area to be calculated is for a Triangle or is for a Rectangle.

Depending on that input - the program must call either the Triangle method or the Rectangle method.

import java.util.Scanner;

class AreaOfRectangle {

public static void main (String[] args)

{

Scanner scanner = new Scanner(System.in);

System.out.println("Enter the length of Rectangle:");

double length = scanner.nextDouble();

System.out.println("Enter the width of Rectangle:");

double width = scanner.nextDouble();

//Area = length*width;

double area = length*width;

System.out.println("Area of Rectangle is:"+area);

}

}

class AreaOfTriangle

{

public static void main(String args[])

{

Scanner s= new Scanner(System.in);

System.out.println("Enter the width of the Triangle:");

double b= s.nextDouble();

System.out.println("Enter the height of the Triangle:");

double h= s.nextDouble();

//Area = (width*height)/2

double area=(b*h)/2;

System.out.println("Area of Triangle is: " + area);

}

}