Using single class

48_High_IQ/java/src/HighIQ.java

@@ -1,10 +1,76 @@
+import java.io.PrintStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Scanner;
+
 public class HighIQ {
-  
-  public HighIQ() {
-    
-  }
-  
-  public void play() {
-    
-  }
+
+    private Map<Integer,Boolean> board;
+    private PrintStream out;
+    private Scanner scanner;
+
+    public HighIQ() {
+        out = System.out;
+        scanner = new Scanner(System.in);
+        board = new HashMap<>();
+
+        //Set of all locations to put initial pegs on
+        int[] locations = new int[]{
+                13, 14, 15, 22, 23, 24, 29, 30, 31, 32, 33, 34, 35, 38, 39, 40, 42, 43, 44, 47, 48, 49, 50, 51, 52, 53, 58, 59, 60, 67, 68, 69
+        };
+
+        for (int i : locations) {
+            board.put(i, true);
+        }
+
+        board.put(41, false);
+    }
+
+    public boolean move() {
+        System.out.println("MOVE WHICH PIECE");
+        int from = scanner.nextInt();
+
+        //using the getOrDefault, which will make the statement false if it is an invalid position
+        if(!board.getOrDefault(from,false)) {
+            return false;
+        }
+
+        System.out.println("TO WHERE");
+        int to = scanner.nextInt();
+
+        if(board.getOrDefault(to,true)) {
+            return false;
+        }
+
+        //Do nothing if they are the same
+        if(from == to) {
+            return true;
+        }
+
+        //using the difference to check if the relative locations are valid
+        int difference = Math.abs(to - from);
+        if(difference != 2 && difference != 18) {
+            return false;
+        }
+
+        //check if there is a peg between from and to
+        if(!board.getOrDefault((to + from) / 2,false)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public void play() {
+        while(true) {
+            while(!move()) {
+                System.out.println("ILLEGAL MOVE, TRY AGAIN...");
+
+            }
+        }
+    }
+
+    public void printBoard() {
+
+    }
 }