目录一、toString 方法的定义与作用二、重写 toString 方法时需要注意什么？（一）信息的完整性与简洁性（二）格式的统一性（三）避免性能问题（四）线程安全（五）避免递归循环三、如何在自定义类中
i am creating a sample movie (MVC) application. I was getting fine with Viewing and Creating a new record, but when i wrote the code to get the details of a particular record i met with the following
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