WHY .class Error??

Question

Why do I get an error  in the for loop??

error: '.class' expected  at the variable i

public class Main {

    private static char[] [] readSecret(String nachricht, int n, int m) {

        char[][] chars = new char[n][m];

    For (int i = 0; i < n; i++){

        For (int j = 0; j < m; j++){

           chars[i] [j] = nachricht.charAt(i*n + j);

        }

   }

      return chars;

      }

      

  public static void main(String[] args) {

          if (args.length != 5)

      {

System.out.println ("ERROR: Zu wenig Würfel");

return;

      }

          System.out.println (readSecret("alle meine Entchen", 3,6));

      }

  }

Answer 1

Generally it is a good idea to share

• what language you're using
• what is your program supposed to do
• what do you think the problem is
• what are your inputs when you have the problem

Here's how I've fixed your code:

For is spelled with lower case f, not upper case F. Most programming languages is case sensitive.

Also, your indentation is all over the place. You should fix it to make your code more readable.

public class Main
{
    private static char[][] readSecret(String nachricht, int n, int m)
    {
        char[][] chars = new char[n][m];
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < m; j++)
            {
               chars[i][j] = nachricht.charAt(i * n + j);
            }
        }

        return chars;
    }

    public static void main(String[] args)
    {
        if (args.length != 5)
        {
            System.out.println ("ERROR: Zu wenig Würfel");
            return;
        }

        System.out.println(readSecret("alle meine Entchen", 3, 6));
    }
}