diff --git a/src/main/java/hse/java/lectures/lecture6/tasks/queue/BoundedBlockingQueue.java b/src/main/java/hse/java/lectures/lecture6/tasks/queue/BoundedBlockingQueue.java
index 5c686cff..79bffb6c 100644
--- a/src/main/java/hse/java/lectures/lecture6/tasks/queue/BoundedBlockingQueue.java
+++ b/src/main/java/hse/java/lectures/lecture6/tasks/queue/BoundedBlockingQueue.java
@@ -1,25 +1,51 @@
 package hse.java.lectures.lecture6.tasks.queue;
 
+import java.util.LinkedList;
+import java.util.Queue;
+
 public class BoundedBlockingQueue<T> {
+    int capacity;
+    Queue<T> queue = new LinkedList<T>();
 
 
     public BoundedBlockingQueue(int capacity) {
+        if (capacity <= 0){
+            throw new IllegalArgumentException();
+        }
 
+        this.capacity = capacity;
     }
 
-    public void put(T item) {
+    public synchronized void put(T item) throws InterruptedException {
+        if (item == null){
+            throw  new IllegalArgumentException();
+        }
+
+        while (queue.size() == capacity){
+
+                wait();
 
+        }
+
+        queue.offer(item);
+        notifyAll();
     }
 
-    public T take() {
-        return null;
+    public synchronized T take() throws InterruptedException {
+        while (queue.isEmpty()){
+
+                wait();
+        }
+        T item = queue.poll();
+        notifyAll();
+        return item;
     }
 
-    public int size() {
-        return 0;
+    public synchronized int size() {
+        return queue.size();
     }
 
     public int capacity() {
-        return 0;
+        return capacity;
     }
 }