设计一个成绩录入程序，通过键盘录入examId（考号，要求全部是数字符号）、name（姓名，要求全部是字母符号）和score（成绩，要求介于0~800）。当输入数据的类型、输入数据的范围出现错误时，使用Java语言定义的异常类和自定义异常类进行处理。-Entry procedures for the design of a performance by keyboard entry examId (candidate number, the number of requests are all symbols), name (name, requirement for a letter symbols) and score (results, request the range of 0 ~ 800). When the type of input data, the scope of input data errors, use the Java language as defined custom exception classes and exception classes for processing.