Set Interfaces added

src/SetInterface/HashSet/CoustomHashSet.java

+package SetInterface.HashSet;
+import java.util.*;
+public class CoustomHashSet
+{
+
+    HashSet<String> obj = new HashSet<>();
+
+    CoustomHashSet()
+    {
+        System.out.println("Object is Created!");
+    }
+
+    void displayHasetFunction()
+    {
+
+        //adding elements in HashSet.
+
+        obj.add("zain");
+        obj.add("Maaz");
+        obj.add("Hurriyah");
+        obj.add("Fatima");
+        obj.add("zain"); // would not add duplicate values.
+
+        System.out.println("Your Hashset is:"+obj);
+
+        // search in hashset
+       if( obj.contains("zain"))
+       {
+           System.out.println("Present in The List");
+       }
+
+       // for delete in HashSet
+
+        obj.remove("Hurriyah");
+
+        System.out.println("Your Hashset is:"+obj);
+
+
+
+
+
+
+
+
+    }
+
+
+
+}

src/SetInterface/HashSet/Main.java

+package SetInterface.HashSet;
+
+public class Main {
+    public static void main(String[] args) {
+        CoustomHashSet obj = new CoustomHashSet();
+        obj.displayHasetFunction();
+    }
+}