Simple JAVA code help

[hrenfrow]

I am new to this, and have wrote the code, but keep getting the same error and completely clueless on what to do next. Any help would be greatly appreciated.


import java.util.*;
public class A1RE5161843 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter length of rectangle :");
double length = input.nextDouble();

System.out.print("Enter width of rectangle :");
double width = input.nextDouble();

System.out.println("Area: "+(length * width));
System.out.println("Perimeter: "+((2*length)+(2*width)));
}

}




Main.java:12: class A1RE5161843 is public, should be declared in a file named A1RE5161843.java
public class A1RE5161843 {
^
1 error

[Fou-Lu]

The code compiles and runs fine. It looks like you don't have the correct file name in use, or that you're not running the javac properly if manually doing it from the command line.
Did you use an IDE for this, or did you just create a text file? Check the directory for this, and see what the extension is (it has to be .java).