adds Land.java

src/Land.java

+public class Land {
+    private int length;
+    private int width;
+    private int[][] landMatrix = new int[length][width];
+
+    public Land(int length, int width) {
+        this.length = length;
+        this.width = width;
+    }
+
+    public int getLength() {
+        return length;
+    }
+
+    public int getWidth() {
+        return width;
+    }
+
+    public int[][] getLandMatrix() {
+        return landMatrix;
+    }
+
+}