diff --git a/Java/src/net/kenyang/algorithm/StringsMultiply.java b/Java/src/net/kenyang/algorithm/StringsMultiply.java
new file mode 100644
index 0000000000..3e1a710b7e
--- /dev/null
+++ b/Java/src/net/kenyang/algorithm/StringsMultiply.java
@@ -0,0 +1,54 @@
+
+import java.util.*;
+
+public class StringsMultiply {
+
+    public static String multiply(String num1, String num2) {
+        Map<Integer, Integer> map = new TreeMap<>();
+        StringBuilder sBuilder = new StringBuilder();
+        num1 = new StringBuilder(num1).reverse().toString();
+        num2 = new StringBuilder(num2).reverse().toString();
+        for (int i = 0; i < num1.length(); i++) {
+            for (int j = 0; j < num2.length(); j++) {
+                int num1Int = Integer.parseInt(String.valueOf(num1.charAt(i)));
+                int num2Int = Integer.parseInt(String.valueOf(num2.charAt(j)));
+                int result = num1Int * num2Int;
+                if (result > 9){
+                    int firstDigit = result % 10;
+                    int secondDigit = result / 10;
+                    addToMap(map, i + j, firstDigit);
+                    addToMap(map, i + j + 1, secondDigit);
+                } else {
+                    addToMap(map, i + j, result);
+                }
+            }
+        }
+
+        Iterator<Map.Entry<Integer, Integer>> iterator = map.entrySet().iterator();
+        while (iterator.hasNext()){
+            Map.Entry<Integer,Integer> e = iterator.next();
+            int index = e.getKey();
+            Integer sum = e.getValue();
+            if (sum > 9){
+                int firstDigit = sum % 10;
+                int secondDigit = sum / 10;
+                sBuilder.append(firstDigit);
+                addToMap(map, index + 1, secondDigit);
+            } else {
+               sBuilder.append(sum);
+            }
+        }
+
+        return sBuilder.reverse().toString();
+    }
+
+    private static void addToMap(Map<Integer, Integer> map, int index, int firstDigit) {
+        map.merge(index, firstDigit, Integer::sum);
+    }
+
+    public static void main(String[] args) {
+        System.out.println(multiply("12", "12"));
+        System.out.println(multiply("25", "24"));
+        System.out.println(multiply("25234332321", "24213345454"));
+    }
+}