Area of a circle studio
Wed Sep 14 2022 20:44:41 GMT+0000 (Coordinated Universal Time)
Saved by
@cruz
#javascript
package org.launchcode.java.studios.areaofacircle;
import java.util.Scanner;
public class Area {
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.println("Enter a radius");
double radius = input.nextDouble();
double area = 3.14 * radius * radius;
System.out.println("Area of circle is :" + area);
}
}
////Here it is with an if/else statement for negative numbers
package org.launchcode.java.studios.areaofacircle;
import java.util.Scanner;
public class Area {
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.println("Enter a radius");
double radius = input.nextDouble();
double area = 3.14 * radius * radius;
if (radius < 0){
System.err.println("Radius must be a positive int.");
//System.exit(status:1);
}else {
System.out.println("Area of circle is :" + area);
}
}
}
content_copyCOPY
https://www.youtube.com/watch?v=_ER3Gsx7uvg&ab_channel=LaunchCodeClasses
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