import random module

src/ar/reservation.java

 package ar;
 import java.util.Scanner;
+import java.util.Random;
 public class reservation{
 	public static String plane[][] = {{"XX", "XX", "XX"}, {"XX", "XX", "06"}, {"07", "08", "09"}, //Initialize the array which contains the plane seats
 				{"10", "11", "12"}, {"13", "14", "15"}, {"16", "17", "18"}, 
@@ -11,9 +12,10 @@ public class reservation{
 				{"XX", "XX", "XX"}, {"XX", "XX", "XX"}, {"XX", "71", "72"}, 
 				{"73", "74", "75"}, {"76", "77", "78"}, {"79", "80", "81"}, 
 				{"82", "83", "84"}, {"85", "86", "87"}, {"88", "89", "90"}};
+	static Random random = new Random();
 	public static void main(String[] args) {//main subprogram
 		Scanner input = new Scanner(System.in);
-		int choice = 0;
+		String choice = "";
 		String reserve = "", section = "";
 		String first = "", last = "", city = "", destination = "";
 		System.out.println("Hello and Welcome. We first need some details-");
@@ -30,8 +32,8 @@ public class reservation{
 					+ "\nPlease Type 1 for First Class"
 					+ "\nPlease Type 2 for Business"
 					+ "\nPlease Type 3 for Economy \n");
-			switch(choice = input.nextInt()) {//switch case to run different outcomes
-			case 1://case if user chooses first class/1
+			switch(choice = input.next()) {//switch case to run different outcomes
+			case "1"://case if user chooses first class/1
 				section = "First class";
 				System.out.println("You have Chosen First Class");//prints out the class that the user has chosen
 				boolean seat = false;
@@ -130,10 +132,10 @@ public class reservation{
 						}
 					}
 				}
-			case 2://case if user chooses business class/2
+			case "2"://case if user chooses business class/2
 				System.out.println("You have Chosen Business Class");//prints out the class that the user has chosen
 				break;
-			case 3://case if user chooses economy class/3
+			case "3"://case if user chooses economy class/3
 				System.out.println("You have Chosen Economy Class");//prints out the class that the user has chosen
 				break;
 			default://case if user chooses an invalid option