Merge pull request codemistic#460 from Aman5989/patch-12

create design-hashset.java

Author: gantavyamalviya

Hashtable/design-hashset.java

@@ -0,0 +1,17 @@
+int size = (int)Math.pow(10, 6)+1;
+boolean[] flag;
+ public MyHashSet() {
+flag = new boolean[size];
+}
+ 
+ public void add(int key) {
+ flag[key]=true;
+ }
+ 
+ public void remove(int key) {
+ flag[key]=false;
+ }
+ 
+ public boolean contains(int key) {
+ return flag[key];
+ }