Array.java

import java.io.*;
import java.util.Scanner;

public class Array {

    static Scanner input = new Scanner(System.in);
    static String arrS[][] = new String[5][5];
    static String cName[] = { "A", "B", "C", "D", "E" };

    static int i, j; // Loop Control Variables

    static void dispData() { // Method that will display the array content
        for (i = 0; i < 5; ++i) {
            for (j = 0; j < 5; ++j) {
                System.out.print(arrS[i][j] + "\t");
            }
            System.out.println();
        }
        System.out.println();
    }

    static boolean chkData(String vData) { // Method that will check for reservation availability
        for (i = 0; i < 5; ++i) {
            for (j = 0; j < 5; ++j) {
                if ((arrS[i][j]).equalsIgnoreCase(vData)) {
                    arrS[i][j] = "X";
                    return true;
                }
            }
        }
        return false;
    }

    static boolean chkFull() { // Method that will check if all reservations were occupied
        for (i = 0; i < 5; ++i) {
            for (j = 0; j < 5; ++j) {
                if (!(arrS[i][j]).equals("X")) {
                    return false;
                }
            }
        }
        return true;
    }

    public static void main(String eds[]) throws IOException { // the MAIN method program
        String inData = new String("");
        for (i = 0; i < 5; ++i) { // Initialized array with constant data
            for (j = 0; j < 5; ++j) {
                arrS[i][j] = new String((i + 1) + cName[j]);
            }
        }

        do { // Loop until user press X to exit
            dispData();
            if (chkFull()) {
                System.out.println("Reservation is FULL");
                inData = "X";
            } else {
                System.out.print("Enter Seat Reservation: ");
                inData = input.next();
                if (chkData(inData))
                    System.out.println("Reservation Successful!");
                else
                    System.out.println("Occupied Seat!");
            }
        } while (!inData.equalsIgnoreCase("X"));

    }
}