Java Program to Find Volume and Surface Area of Sphere

This is the Java Program to Find the Surface Area and Volume of a Sphere.

Problem Description

Given the dimensions of a sphere, find out its surface area and volume.

Problem Solution

The surface area and volume of a sphere can be calculated using the formulas:

Surface Area = 4 * PI * (radius³) /3.
Volume = 4 * PI * (radius²).

Program/Source Code

Here is the source code of the Java Program to Find the Surface Area and Volume of a Sphere. The program is successfully compiled and tested using IDE IntelliJ Idea in Windows 7. The program output is also shown below.

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//Java Program to Find the Surface Area and Volume of a Sphere

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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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public class Sphere {
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    // Function to calculate and print the surface area and volume of a sphere

    public static void main(String[] args) {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

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        double radius;
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        System.out.println("Enter the radius of the sphere");

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        try{
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            radius=Double.parseDouble(br.readLine());

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        }catch (Exception e){
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            System.out.println("An error occurred");

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            return;
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        }
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        if(radius<=0){
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            System.out.println("Wrong Input");

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            return;
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        }
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        System.out.println("Volume = " + (4*Math.pow(radius,3)*Math.PI)/3);

        System.out.println("Surface area = " + (4*Math.PI*Math.pow(radius,2)));

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    }
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}
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Program Explanation

1. In function main(), first, the radius of the sphere is taken as input.
2. The condition if(radius<=0) checks if the input is valid or not.
3. The print statement displays the surface area and volume of the sphere.

Time Complexity: O(1)

Runtime Test Cases

 
Case 1 (Simple Test Case):
 
Enter the radius of the sphere
4.55
Volume = 394.56885292638566
Surface area = 260.15528764377075

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