uebung09

uebung09/src/iterator/Array2dIterator.java

@@ -0,0 +1,38 @@
+package iterator;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+public class Array2dIterator<T> implements Iterator<T> {
+
+    private T[][] array;
+    private int row = 0;
+    private int col = 0;
+
+    public Array2dIterator(T[][] array) {
+        this.array = array;
+    }
+
+    @Override
+    public boolean hasNext() {
+        if (row < array.length) {
+            if (col >= array[row].length) {
+                col = 0;
+                row++;
+            }
+        }
+        if (row < array.length && col < array[row].length) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public T next() {
+        if (!hasNext()) {
+            throw new NoSuchElementException();
+        }
+
+        return array[row][col++];
+    }
+}