PriorityQueue come true.

08-Heap-and-Priority-Queue/01-Heap-Basics/01-Heap-Basics/src/PriorityQueue.java

@@ -0,0 +1,38 @@
+/**
+ * @Auther: lss
+ * @Date: 2019/2/26 12:52
+ * @Description:
+ */
+public class PriorityQueue<E extends Comparable<E>> implements Queue<E> {
+
+ private MaxHeap<E> maxHeap;
+
+ public PriorityQueue() {
+ maxHeap = new MaxHeap<>();
+ }
+
+ @Override
+ public void enqueue(E e) {
+ maxHeap.add(e);
+ }
+
+ @Override
+ public E dequeue() {
+ return maxHeap.extractMax();
+ }
+
+ @Override
+ public E getFront() {
+ return maxHeap.findMax();
+ }
+
+ @Override
+ public int getSize() {
+ return maxHeap.size();
+ }
+
+ @Override
+ public boolean isEmpty() {
+ return maxHeap.isEmpty();
+ }
+}

08-Heap-and-Priority-Queue/01-Heap-Basics/01-Heap-Basics/src/Queue.java

@@ -0,0 +1,18 @@
+/**
+ * @Auther: lss
+ * @Date: 2019/2/26 12:51
+ * @Description:
+ */
+public interface Queue<E> {
+ void enqueue(E e);
+
+ E dequeue();
+
+ E getFront();
+
+ int getSize();
+
+ boolean isEmpty();
+
+
+}