Create ReverseInteger.java

Author: Trmpsanjay

ReverseInteger.java

@@ -0,0 +1,25 @@
+class Solution {
+    public int reverse(int x) {
+        // checking sign
+        boolean positive = true;
+        if(x<0){
+            positive = false;
+            x=Math.abs(x);
+        }
+        long rev =0;
+        while(x>0){
+            rev = rev*10 +x%10;
+            x=x/10;
+        }
+        
+        // if answer is greaterv than integer max value return 0
+            if(rev>Integer.MAX_VALUE || rev<Integer.MIN_VALUE)
+                return 0;
+        // now checking sign and retuning answer based on that
+        if(positive)
+            return (int)rev;
+        else
+            return (int)-rev;
+        
+    }
+}