Use parameterized queries or stored procedures to access a database as opposed to using string concatenation.

使用参数化查询或存储过程来访问数据库，而不是使用字符串连接。

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Box is parameterized by a type parameter t, which signifies the type of the contents of the box; a box can contain only elements of type String.

Box由类型参数t参数化，该参数表示Box内容的类型，Box只能包含String类型的元素。

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Box is parameterized by a type parameter t, which signifies the type of the contents of the box; a box can contain only elements of type String.

Box由类型参数t参数化，该参数表示Box内容的类型，Box只能包含String类型的元素。

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