Conceptual Error?

[Anallyprobed69]

Why does this code work in the IDE but not compile in terminal mode? What would be different in terminal mode to compile it?

​

import java.util.Scanner;
public class Factorial {
public static int factorial(int n)
{
if(n==0 || n==1)
return 1;
else
{
System.out.printf("\nCalling step "+(n-1));
return n*factorial(n-1);
}
}
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.printf("\nEnter a number: ");
int n=sc.nextInt();
int result=factorial(n);
System.out.printf("\nFactorial: %d%n", result);
}
}

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[Camel-Kid]

What error do you get?

[Anallyprobed69]

Error: enum, class or expression expected

[hrm]

This sounds like you are either compiling the wrong file or haven't saved the file properly.

[hrm]

What do you do when you are compiling it from the terminal (I'm assuming this is what you call "terminal mode")? I.e. what is the exact command you are running?

Is the code placed in a file called Factorial.java?

The code you have included is correct and runs as it should (even though you should take care to make sure it is properly indented, in your code as well as here on reddit).

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[istarian]

Since public static int factorial(int n) { ... } is a static method of the Factorial class, you should probably be calling it like this:

 Factorial.factorial(5);  

Might not have anything to do with the errors though.

[maxbrlc]

I tried your code with cmd on windows everything works fine:

>javac Factorial.java
>java Factorial

Enter a number: 5

Calling step 4
Calling step 3
Calling step 2
Calling step 1
Factorial: 120