Write a java program that computes the area of a circle, rectangle and a Cylinder using function overloading.
Code Insights:
Created java_3.java, a new java class file and imported java.util.Scanner package to take user input, OverloadClass has 3 different implementation of same method (area) for 3 different types of possible inputs - Cylinder, Rectangle, and Circle.
In the main method Scanner class object takes the desired input bf dimensions of shape to calculate area through menu-driven approach using switch-case along with options to quit and handle invalid input from user.
Code
/**
*Solution for Ans. 8
* @author Jatin Kamboj 8647
*/
import java.util.Scanner;
class OverloadClass {
void area(double x, double y) // Cylinder
{
double t = (2 * 3.14 * x * y) + (2 * 3.14 * x * x);
System.out.println("=> The area of the " +
"Cylinder is " + t + " sq. units.\n");
}
void area(float x, float y) { // Rectangle
System.out.println("=> The area of the" +
" Rectangle is " + x * y + " sq. units.\n");
}
void area(double x) { // Circle
double z = 3.14 * x * x;
System.out.println("=> The area of the" +
" Circle is " + z + " sq. units.\n");
}
}
public class java_3 {
public static void main(String[] args) {
OverloadClass ob = new OverloadClass();
Scanner sc = new Scanner(System.in);
System.out.println("\n -- This program is" +
" Menu-driven and calculates Area of" +
" using Method Overloading -- \n");
int choice = 10;
while (choice != 0) {
System.out.print("1.Area of Cylinder " +
"\n2.Area of Rectangle " +
"\n3.Area of Circle " +
"\nPress 0 to QUIT " +
"\n\nEnter Menu Option: ");
choice = sc.nextInt();
switch (choice) {
case 1:
System.out.println("\nEnter dimensions" +
" for cylinder (Radius, " +
"Height): ");
double n1 = sc.nextDouble();
double n2 = sc.nextInt();
ob.area(n1, n2);
break;
case 2:
System.out.println("\nEnter dimensions" +
" for Rectangle (Length, " +
"Breadth): ");
float n3 = sc.nextFloat();
float n4 = sc.nextFloat();
ob.area(n3, n4);
break;
case 3:
System.out.println("\nEnter Radius " +
"for Circle: ");
double n5 = sc.nextDouble();
ob.area(n5);
break;
case 0:
System.out.println("\nPROGRAM ENDED");
break;
default:
System.out.println("\nINVALID INPUT" +
" TRY AGAIN!!!\n");
}
}
}
}
Output
Try or Test The Corresponding Code Here
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