9. Write a menu driven java program to calculate:
(a) Area of a circle = p*r), where p = 22
(6) Area of a square = side*side
(c) Area of a rectangle = length breadth
Enter 'c' to calculate area of circle, 's' to calculate area of square and 'r' to calculate
area of rectangle.
Answers
Answer:
import java.util.Scanner;
public class Geometry
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
System.out.println("MENU:");
System.out.println("Enter c for Area of a Circle");
System.out.println("Enter s for Area of a Square");
System.out.println("Enter r for Area of a Rectangle");
char op=s.next(). c h a r A t (0);
switch(op)
{
case 'c': System.out.println("Enter radius:");
float r=s.nextFloat();
float ac=3.14f*r*r;
System.out.println("Area:"+ac);
break;
case 's': System.out.println("Enter side:");
int x=s.nextInt();
int as=x*x;
System.out.println("Area:"+as);
break;
case 'r': System.out.println("Enter height and base:");
float h=s.nextFloat();
float bs=s.nextFloat();
float art=0.5f*h*bs;
System.out.println("Area:"+art);
break;
default: System.out.println("Wrong choice");
}
}
}
Explanation:
No spaces at c h a r A t just brainly doesn't allow it ..idk why
Hope it helps :-)
Answer:import java.util.Scanner;
public class Geometry
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
System.out.println("MENU:");
System.out.println("Enter c for Area of a Circle");
System.out.println("Enter s for Area of a Square");
System.out.println("Enter r for Area of a Rectangle");
char op=s.next(). c h a r A t (0);
switch(op)
{
case 'c': System.out.println("Enter radius:");
float r=s.nextFloat();
float ac=3.14f*r*r;
System.out.println("Area:"+ac);
break;
case 's': System.out.println("Enter side:");
int x=s.nextInt();
int as=x*x;
System.out.println("Area:"+as);
break;
case 'r': System.out.println("Enter height and base:");
float h=s.nextFloat();
float bs=s.nextFloat();
float art=0.5f*h*bs;
System.out.println("Area:"+art);
break;
default: System.out.println("Wrong choice");
}
}
}
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