使用JSON Simple解析大型JSON文件（OutOfMemoryError）

I am trying to parse large JSON file with JSON Simple and i am getting out of memory errors. I am on Windows 10 and my laptop has an 8gb RAM. The file is 250mb, i will also need to parse a 2gb file. I also tried with StrinBuilder but then i am getting memory errors on StringBuilder. Here is my code with StringBuilder:I am trying to parse large JSON file with JSON