Added 20 solutions

Java/BigNumber/Java BigDecimal/Solution.java

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+//     Author: Rodney Shaghoulian
+//     Github: github.com/rshaghoulian
+// HackerRank: hackerrank.com/rshaghoulian
+
+import java.math.BigDecimal;
+import java.util.*;
+class Solution{
+    public static void main(String []args){
+        //Input
+        Scanner sc= new Scanner(System.in);
+        int n=sc.nextInt();
+        String []s=new String[n+2];
+        for(int i=0;i<n;i++){
+            s[i]=sc.next();
+        }
+        sc.close();
+
+        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
+            }
+        };
+
+        Arrays.sort(s, 0, n, customComparator);
+        
+        //Output
+        for(int i=0;i<n;i++)
+        {
+            System.out.println(s[i]);
+        }
+    }
+}