hi need some experienced in java API creation

hi , i need one java api and the developer has already created it but there are some problem or dicrpance into it so i need some one to clear the fault properly, here is project details " Base on existing open source API JAVA codes, create new codes that capture and calculate exponential moving average. Using the result to trigger buy and sell order with if statements. Here's the link to the api code and sample codes: [login to view URL] Here's the setup procedures: [login to view URL] Here's the documentation: [login to view URL] Here's the calculation of exponential moving average: [login to view URL] Find the step by step plan as attached. and plan file is attached and work done file name googl is also attached have a look budget an be discuss some what changes but i need proper work