Question

When declaring objects of class templates, the _____________ you wish to pass into the type parameter must be specified.

Short answer

#tag_title# Short Answer #tag_content# When declaring objects of class templates in C++, you need to specify the desired data type you want to pass into the type parameter. For example, when creating an object of a class template MyClass, you would write "MyClass obj1;" for an object working with integers or "MyClass obj2;" for an object working with strings.

Step-by-step solution

Title: C++ Class Templates

To understand the exercise better, let's first discuss Class Templates in C++. Class templates are a type of generic programming, allowing a single class to work with different data types. When defining a class template, we use the keyword "template" followed by type parameters enclosed in angle brackets.<>.

Identifying the missing word

When declaring objects of class templates, the _____________ you wish to pass into the type parameter must be specified. The missing word in this statement is "data type". When declaring objects of class templates in C++, you need to specify the desired data type you want to pass into the type parameter.

Example of a Class Template

Let's consider an example of creating a simple class template: template class MyClass { public: T data; void display(const T& val) { cout << "Data: " << val << endl; } };

Declaring objects with a specified data type

Now, let's create an object of this class template and specify the data type for the type parameter: MyClass obj1; // Declaring object of MyClass and specifying data type int obj1.display(42); // Output: Data: 42 MyClass obj2; // Declaring object of MyClass and specifying data type string obj2.display("Hello, world!"); // Output: Data: Hello, world! In the above examples, when declaring obj1 and obj2, we specified the data types 'int' and 'string' for the type parameters while creating the objects of class template MyClass.