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Compute the Area of the Circle in Java

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Submitted on: 10/15/2016 3:54:43 AM
By: Jake R. Pomperada  
Level: Beginner
User Rating: Unrated
Compatibility: Java (JDK 1.1), Java (JDK 1.2), Java (JDK 1.3), Java (JDK 1.4), Java (JDK 1.5)
Views: 2319
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     Here is one of the oldest code in Java when I start learning how to program on it to compute the area of the circle in this example I am still using buffered reader in order to accept input values from the user. Add me at Facebook my addressis jakerpomperada@gmail.com and jakerpomperada@yahoo.com. My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com. My mobile number here in the Philippines is 09173084360.
 
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//**************************************
// Name: Compute the Area of the Circle in Java
// Description:Here is one of the oldest code in Java when I start learning how to program on it to compute the area of the circle in this example I am still using buffered reader in order to accept input values from the user.
Add me at Facebook my addressis jakerpomperada@gmail.com and jakerpomperada@yahoo.com. 
My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com. 
My mobile number here in the Philippines is 09173084360.
// By: Jake R. Pomperada
//**************************************

import java.io.*;
public class area_circle {
 public static void main(String [] args) throws Exception
 {
 BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
 int radius=0;
 
 double pi, area;
 
 System.out.println("Compute Area of a Circle\n");
 System.out.print("Enter a value for radius: ");
 radius = Integer.parseInt(input.readLine());
 pi = 3.1416;
 area = (pi * (radius * radius));
 System.out.println("\nThe value for radius is: " + radius);
 System.out.println("\nThe value for pi is: " + pi);
 System.out.println("\nThe area of a circle is: " + area + "\n\n\n" );
 System.out.println("\n\n\n" );
 System.out.println("End of Program" );
 }
}


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