Guess the number Mini game with Java

A simple Console mini game made with java.

Author: Yaito

guess_the_number_minigame.java

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+
+/**
+ * Created by yaito on 29/10/2017
+ */
+
+import java.io.*; 
+ 
+class guessNumber { 
+    public static void main (String[]args) throws IOException 
+    { 
+        engine run = new engine(); 
+        run.menu(); 
+    } 
+} 
+ 
+class engine { 
+        String player_name; 
+         
+    void menu () throws IOException { 
+        boolean on = true; 
+    
+    //Getting player name
+        BufferedReader reader = new BufferedReader (new InputStreamReader(System.in));
+        System.out.println("Input your name"); 
+        player_name = reader.readLine(); 
+    
+    //The game begin here
+        while (on){ 
+            int answer,userAnswer,tries = 0; 
+        System.out.println("\t Menu"); 
+        System.out.println("Welcome to the guess the number game, "+player_name+", select the an option:"); 
+        System.out.println("\t1. Games Instruction"); 
+        System.out.println("\t2. Play"); 
+        System.out.println("\t3. Close"); 
+        int choice = Integer.parseInt(reader.readLine()); 
+         
+        switch(choice){ 
+            case 1 : instruction(); 
+                    break; 
+            case 2 : answer = (int) (Math.random()*5000+1); //Create an random number from 1 - 5000
+                     System.out.println("\nLet the fun begin\nNow guess!\n"); 
+                  
+                     while (tries<15){ 
+                         userAnswer = Integer.parseInt(reader.readLine()); 
+                         tries = tries+1; 
+                         int end = 15-tries; // tries left to end the game
+                          
+                            //if the player is lucky enough to guess the number it enter the if sequence
+                         if (userAnswer == answer){ 
+                             System.out.println("\nCongratulation "+player_name+", you WON!!!"); 
+                             System.out.println("You did it on your "+tries+" try\n"); 
+                             tries = tries+end; 
+                            //if the player successfully guess the number, you just add the your current tries with the tries left to end the while loop inmediatly
+                         } 
+                            //if the player fail to guess the number after 15 tries
+                         else{ 
+                            if (tries==15){ 
+                                        System.out.println("\nYou have "+end+" tries left\n"); 
+                                        System.out.println("The number was: "+answer+"\n"); 
+                                        System.out.println("You lose, Try again and better luck next time\n"); 
+                             tries = tries+end; 
+                             //if the player fail guess the number, you just add the your current tries with the tries left to end the while loop
+                                          } 
+ 
+                            //everytime the player guess a number, the game will give a hint, if the number is too low or is too high.
+                                        else{ 
+                                 if(userAnswer>answer){ 
+                                     System.out.println("\nToo high, try with a lower number"); 
+                                     System.out.println("You have "+end+" tries left\n"); 
+                                     }  
+                                        else { 
+                                            if (userAnswer<answer){ 
+                                                System.out.println("\nToo low, try with a higher number"); 
+                                                System.out.println("You have "+end+" tries left\n"); 
+                                                } 
+                                } 
+                         } 
+                     } 
+                     } 
+                    break; 
+            case 3 : on = false; 
+                    break; 
+        default : System.out.println("Invalid Option \nTry again"); 
+        } 
+         
+        } 
+    } 
+     
+    void instruction(){ 
+        System.out.println("\nWelcome to the game "+player_name+",\nThese are the rules of the game,\nThe system will choose a random number between 1 to 5000"); 
+        System.out.println("You must guess which number it is,\nYou will have 15 tries to guess,"); 
+        System.out.println("Each time you guess a number, if it is wrong the system will give you a hint.\nGood Luck!!\n"); 
+    } 
+}