Download e-book for kindle: Bijoux et objets en 3 dimensions: Perles de rocaille by Marie-Hélène Zech

By Marie-Hélène Zech

ISBN-10: 2283589193

ISBN-13: 9782283589199

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Regardless, their precedence never changes. For example, the + operator can mean string concatenation if you’re using it with string operands. By using operator overloading when defining your own types, you can make some of these operators perform whatever semantic meaning makes sense for the type. But again, you may never alter the precedence of these operators except by using parentheses to change the grouping of operations. Statements and Expressions Statements in C# are identical in form to those of C++ and Java.

Reference types: Defined in C# using the class keyword. They are called reference types because the variables you use to manipulate them are actually references to objects on the managed heap. In fact, in the CLR reference-type variables are like value types that reference an object on the heap. In this way, C# and Java are identical. C++ programmers can think of them as pointers that you don’t have to dereference to access objects. Some C++ programmers like to think of these as smart pointers.

During the execution of the application, only the needed code is JIT-compiled. If your application contains printing code, for example, that code is not needed if the user never prints a document, and therefore the JIT compiler never compiles it. Moreover, the CLR can optimize the program’s execution on the fly at run time. For example, the CLR may determine a way to reduce page faults in the memory manager by rearranging compiled code in memory, and it could do all this at run time. Once you weigh all the pros together, you find that they outweigh the cons for most applications.

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Bijoux et objets en 3 dimensions: Perles de rocaille by Marie-Hélène Zech

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