Happy Number

Author: ParthDhavan04

Problem 202.java

@@ -0,0 +1,21 @@
+class Solution {
+    public boolean isHappy(int n) {
+        if(n==7)
+        return true;
+        int c=0;
+      while(c<10) 
+      {
+        int s = 0;
+        while(n!=0){
+            int d = n%10;
+            s = s + d*d;
+            n/=10;
+        }
+        n = s; 
+        c++;
+      } 
+      if(n==1) return true;
+      else 
+      return false;
+}
+}