uebung09

uebung09/src/chess/ChessApp.java

@@ -1,6 +1,7 @@
 package chess;
 
 import java.io.InputStream;
+import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Scanner;
 
@@ -12,6 +13,7 @@ public class ChessApp {
     private static final String BLACK_QUEEN = "Q";
     private static final String WHITE_KNIGHT = "n";
     private static final String BLACK_KNIGHT = "N";
+    private static final String ITERATOR = "i";
 
     private final Scanner scanner;
     private final Board board;
@@ -44,6 +46,7 @@ public class ChessApp {
                     case WHITE_QUEEN -> addQueen(Color.white);
                     case BLACK_KNIGHT -> addKnight(Color.black);
                     case WHITE_KNIGHT -> addKnight(Color.white);
+                    case ITERATOR -> iterate();
                     default -> System.out.println("Invalid command " + command);
                 }
             }
@@ -70,6 +73,15 @@ public class ChessApp {
         board.printBoard();
     }
 
+    private void iterate() {
+        final Iterator<Piece> it = board.iterator();
+
+        
+        while (it.hasNext()) {
+            System.out.println(it.next());
+        }
+    }
+
     private void help() {
         System.out.println("Commands:");
         System.out.println(ABORT + ": terminate the program");
@@ -78,5 +90,6 @@ public class ChessApp {
         System.out.println(BLACK_KNIGHT + " <int> <int>: place a new black knight at specified position");
         System.out.println(WHITE_QUEEN + " <int> <int>: place a new white queen at specified position");
         System.out.println(BLACK_QUEEN + " <int> <int>: place a new black queen at specified position");
+        System.out.println(ITERATOR + ": iterate over the board and print all pieces to the console");
     }
 }