Thread: Intro to Java

Hey so I'm taking a intro to java class and I'm told to (Computing the volume of a cylinder) Write a program that reads in the radius and length of a cylinder and computes volume using the following formulas:
area = r*r*pi
volume= area*length

In the end the program is suppose to say "The area is...The volume is..."
This is what I have so far but I am totally lost. Also let me know if it should use another way to show my code vs copy and paste. Please let me know what I am doing wrong.


import java.util.Scanner;


public class VolumeOfACylinder {

public static void main(String[] args){

// area = radius * radius * 3.14159

Scanner scum = new Scanner(System.in);

double radius = scum.nextDouble();

System.out.println("Please enter the radius: ");

double area;

area = radius * radius * 3.14159;

// volume = area * length

Scanner solo = new Scanner(System.in);

double area;

double lenth = solo.nextDouble();

System.out.println("Please enter the length: ");

double volume;

volume = area * length;

System.out.println("The area is " + area + "and the volume is " + area * length );
}
}

Originally Posted by Norm

That way is good. One more thing to be done is wrap the code in code tags:

[code=java]

<YOUR CODE HERE>

[/code]

to get highlighting and preserve formatting.

Okay still I still need help with the code idk why its not running.

import java.util.Scanner;
 
 
public class VolumeOfACylinder {
 
public static void main(String[] args){
 
// area = radius * radius * 3.14159 
 
Scanner scum = new Scanner(System.in);
 
double radius = scum.nextDouble();
 
System.out.println("Please enter the radius: ");
 
double area;
 
area = radius * radius * 3.14159;
 
//	volume = area * length
 
Scanner solo = new Scanner(System.in);
 
double area; 
 
double lenth = solo.nextDouble();
 
System.out.println("Please enter the length: ");
 
double volume;
 
volume = area * length; 
 
System.out.println("The area is " + area + "and the volume is " + area * length );
}
}