Question

The names of the teams participating in a competition should be displayed on a banner vertically, to accommodate as many teams as possible in a single banner.
Design a program to accept the names of N teams, where 2 < N < 9 and display them in vertical order, side by side with a horizontal tab (i.e. eight spaces).

Test your program for the following data and some random data:
Example 1:
INPUT:
N = 3
Team 1: Emus
Team 2: Road Rols
Team 3: Coyote
OUTPUT:
E        R        C
m        o        o
u        a        y
s        d        o
                  t
         R        e
         o
         l
         s

Example 2:
INPUT:
N = 4
Team 1: Royal
Team 2: Mars
Team 3: De Rose
Team 4: Kings
OUTPUT:

R        M        D        K
o        a        e        i
y        r                 n
a        s        R        g
l                 o        s
                  s
                  e

Example 3:
INPUT:
N = 10
OUTPUT:
Invalid input.

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Code

import java.util.Scanner;
public class Banner
{
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        int n = 0,i=0,j=0,len=0;
        String a[];
        System.out.print("N = ");
        n = sc.nextInt();
        if(n <= 2 || n >= 9)
        {
            System.out.println("Invalid input.");
            return;
        }
        sc.nextLine();
        a = new String[n];
        for(i = 0; i < n; i++)
        {
            System.out.print("Team " + (i + 1) + ": ");
            a[i] = sc.nextLine();
            if(len < a[i].length())
            {
                len = a[i].length();
            }
        }
        for(i = 0; i < len; i++)
        {
            for(j = 0; j < n; j++)
            {
                if(i < a[j].length())
                {
                    System.out.print(a[j].charAt(i) + "\t");
                }
                else
                {
                    System.out.print("\t");
                }
            }
            System.out.println();

        }
    }
}