feat: 쓸만한 배열 기반 힙 구현 시작

Author: ksundong

yoonexample/src/main/java/heap/ArrayUsefulHeap.java

@@ -0,0 +1,34 @@
+package heap;
+
+import java.util.Comparator;
+
+public class ArrayUsefulHeap<E> implements UsefulHeap<E> {
+
+  private static final int INITIAL_CAPACITY = 100 + 1;
+
+  private int numOfData;
+  private Object[] heapArr;
+  // 첫번째 인자가 크면 양수, 작으면 음수, 같으면 0을 반환한다.
+  private Comparator<E> comp;
+
+  public ArrayUsefulHeap(Comparator<E> comparator) {
+    this.heapArr = new Object[INITIAL_CAPACITY];
+    this.comp = comparator;
+  }
+
+  @Override
+  public boolean isEmpty() {
+    return this.numOfData == 0;
+  }
+
+  @Override
+  public void insert(E data) {
+
+  }
+
+  @Override
+  public E delete() {
+    return null;
+  }
+
+}