@@ -0,0 +1,506 @@
+public class Solution %7B%0A    public int%5B%5D twoSum(int%5B%5D numbers, int target) %7B%0A        Map%3CInteger, Integer%3E valToIdx = new HashMap%3C%3E ();%0A        int ret%5B%5D = new int%5B%5D %7B-1, -1%7D;%0A        %0A        for(int i=0; i%3Cnumbers.length; i++) %7B%0A            if (valToIdx.containsKey(target-numbers%5Bi%5D)) %7B%0A                ret%5B0%5D = valToIdx.get(target-numbers%5Bi%5D);%0A                ret%5B1%5D = i+1;%0A                break;%0A            %7D %0A            valToIdx.put(numbers%5Bi%5D, i+1);%0A        %7D%0A        %0A        return ret;%0A    %7D%0A%7D%0A

Create Two_Sum.java