diff --git a/Java/javabig_decimal.java b/Java/javabig_decimal.java
new file mode 100644
index 0000000..cf0b87c
--- /dev/null
+++ b/Java/javabig_decimal.java
@@ -0,0 +1,12 @@
+Arrays.sort(s, Collections.reverseOrder(new Comparator<String>() {
+    @Override
+    public int compare(String a1, String a2) {
+        //convert to big decimal inside comparator
+        //so permanent string values are never changed
+        //aka you only use the BigDecimal values to 
+        //compare the strings!
+        BigDecimal a = new BigDecimal(a1);
+        BigDecimal b = new BigDecimal(a2);
+        return a.compareTo(b);
+    }
+}));