BigDecimla problem

src/com/sks/hkr/java/bigNumber/BigDecimalProblem.java

@@ -17,17 +17,27 @@ public static void main(String[] args) {
         }
         sc.close();
 
-        // We want to sort in descending order while preserving the contents
-        // of each String. A comparator can achieve this for us. We convert
-        // to BigDecimal inside our comparator so that the change is not
-        // permanent and our String's form for each number is preserved.
-        Comparator<String> customComparator = new Comparator<String>() {
+
+        /**
+         *  We want to sort in descending order while preserving the contents
+         *   of each String. A comparator can achieve this for us. We convert
+         *   to BigDecimal inside our comparator so that the change is not
+         *   permanent and our String's form for each number is preserved.
+         */
+        /*Comparator<String> customComparator = new Comparator<String>() {
             @Override
             public int compare(String s1, String s2) {
                 BigDecimal a = new BigDecimal(s1);
                 BigDecimal b = new BigDecimal(s2);
                 return b.compareTo(a); // descending order
             }
+        };*/
+
+        /**
+         * Using Lambda
+         */
+        Comparator<String> customComparator = (s1, s2) -> {
+            return new BigDecimal(s2).compareTo(new BigDecimal(s1));
         };
 
         Arrays.sort(s, 0, n, customComparator);