add MyArray

search/src/main/java/constants/MyArray.java

@@ -0,0 +1,24 @@
+package constants;
+
+public class MyArray<E> {
+
+    private static final int DEFAULT_CAPACITY = 100;
+
+    private static final Object[] EMPTY_ELMENT_DATA = {};
+
+    private int size;
+
+    private Object[] elementData;
+
+    public MyArray(int capacity) {
+        if (capacity > 0) {
+            this.elementData = new Object[capacity];
+        } else if (capacity == 0) {
+            this.elementData = EMPTY_ELMENT_DATA;
+        } else {
+            throw new IllegalArgumentException("Illegal capacity " + capacity);
+        }
+    }
+
+
+}