Use the primitive variable types instead of the object types whenever possible.
只要有可能，就使用基本变量类型，而不使用对象类型。
Change the #undef macros to #define and set the variable types to int (see Listing 2).
把 #undef宏改为 #define，把变量类型设置为int（见清单 2）。
There are differences in the definition of floating-point Numbers and long variable types.
浮点型数字和长变量类型的定义是有差异的。
For example, Groovy doesn't require semicolons, and it makes variable types and access modifiers optional.
例如，Groovy不要求使用分号，变量类型和访问修饰符也是可选的。
An OOP language allows you to define your own objects and make your own variable types.
OOP语言可以让你自定义对象和变量类型。
An OOP language allows you to define your own objects and make your own variable types.
OOP语言可以让你自定义对象和变量类型。
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