If you need another data type such as integer, floating point, or Boolean value, you will have to parse the string using the appropriate wrapper class.
如果需要其他的数据类型，比如说整数、浮点数或者布尔值，必须使用相应的包装器类来解析字符串。
To pass this to a recursive method, the anonymous class should extend a wrapper type known to the method.
为了在递归方法中传递，匿名类应该扩展方法已知的包装器类型。
Primitive float type and wrapper class float have different comparison behavior.
基本浮点类型和包装类浮点有不同的比较行为。
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