WelcomeMessage.java

import java.util.Scanner;

public class WelcomeMessage {

    /**
    *   Program:    WelcomeMessage.java
    *   Purpose:    Display custom welcome message in command prompt window
    *   Creator:    Chris Clarke
    *   Created:    12.08.2014
    */

    public static void main(String[] args) {

        final int BOX_WIDTH = 80; // width of welcome message box = DOS command prompt width
        final int BOX_HEIGHT = 9; // height of welcome message box

        Scanner scan = new Scanner(System.in);
        String message;
        char symbol = '#';
        int leadingSpaces, trailingSpaces;

        do {
            System.out.print("Enter your welcome message: ");
            message = scan.nextLine();
            if (message.length() > BOX_WIDTH-4) {
                System.out.println("Message too long!");
            } // end if
            if (message.length() < 1) {
                System.out.println("No message!");
            } // end if
        } while (message.length() > BOX_WIDTH-4 || message.length() < 1);

        System.out.println("\n");

        leadingSpaces = (BOX_WIDTH / 2) - (message.length() / 2);
        trailingSpaces = (BOX_WIDTH - (leadingSpaces+message.length()));

        for (int row = 0; row<BOX_HEIGHT; row++) {
            if (row==0 || row==BOX_HEIGHT-1) {  // first and last rows
                for (int col=0; col<BOX_WIDTH; col++) {
                    System.out.print(symbol);
                } // end for col
            } else if (row==BOX_HEIGHT/2) {     // middle row
                System.out.print(symbol);
                for (int sp = 1; sp<leadingSpaces; sp++) {
                    System.out.print(" ");
                } // end for
                System.out.print(message);
                for (int sp = 1; sp<trailingSpaces; sp++) {
                    System.out.print(" ");
                } // end for
                System.out.print(symbol);
            } else {                // other rows
                System.out.print(symbol);
                for (int sp = 1; sp<BOX_WIDTH-1; sp++) {
                    System.out.print(" ");
                } // end for
                System.out.print(symbol);
            } // end if row
        } // end for row
    } // end main()
} // end class