Question

Q-) Write a menu-driven JAVA program to calculate:
(i) Area of a circle, Formula-
$(a \: \times \pi \: r ^{2} )$
(ii) Area of rectangle, Formula-
(A=LENGTH*BREATH)
(iii) Exit the program.

[Who ever answers correct, will be marked as a BRAINLIEST, and THANKFUL.
And whoever answers SPAM, it will be reported..]
Please-Please answer.....






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Answer 1

import java.util.*;

class menu

{

public static void main(String args[ ])

{

Scanner sc=new Scanner(System.in);

double r,l,b,area;

int ch;

System.out.println("1. Area of Circle");

System.out.println("2. Area of Rectangle");

System.out.println("3. Exit");

System.out.println("Enter your choice");

ch=sc.nextInt();

switch(ch)

{

case 1: System.out.println("Enter the Radius");

r=sc.nextDouble();

area=3.14*r*r;

System.out.println("Area of Circle "+area);

break;

case 2: System.out.println("Enter the length and breadth:);

l=sc.nextDouble();

b=sc.nextDouble();

area=l*b;

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

break;

case 3: System.exit(0);

break;

default : System.out.println("You entered wrong choice ");

break;

}

}

}