Wrapper class that prints integral types (byte, short, int and long) in columns.

package Wrapper;

public class wrapper 
{

    public static void main(String []args)
    {
        System.out.printf("%10s: %,-30d %,-30d%n ",  "Byte ", Byte.MIN_VALUE, Byte.MAX_VALUE);
        System.out.printf("%10s: %,-30d %,-30d%n ",  "Short ", Short.MIN_VALUE, Short.MAX_VALUE);
        System.out.printf("%10s: %,-30d %,-30d%n ",  "Integer ", Integer.MIN_VALUE, Integer.MAX_VALUE);
        System.out.printf("%10s: %,-30d %,-30d%n ",  "Long ", Long.MIN_VALUE, Long.MAX_VALUE);
        
        char a = 'a';
        char A = 'A';
        char p = '#';
        char six = '6';
    
        System.out.println();
        System.out.println();
        
        System.out.printf("a: %s%n", letterEval(a));
        System.out.printf("A: %s%n", letterEval(A));
        System.out.printf("#: %s%n", letterEval(p));
        System.out.printf("6: %s%n", letterEval(six));

    }

    private static String letterEval(char ch)
    {
        String giveBack = "";
        
        if(Character.isLetter(ch) && Character.isLowerCase(ch))
        {
            giveBack = "Leter";
        }
        else if(Character.isLetter(ch) && Character.isUpperCase(ch))
        {
            giveBack = "Letter UpperCase";
        }
        else if(Character.isDigit(ch))
        {
            giveBack = "Number";
        }
        
        return giveBack;
    }
}