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Question
Which mode would you use if you wanted to open a file for both reading and writing?(a) r+
(b) w+
(c) a+
(d) all of these
Answer
This answer is hidden. It contains 3 characters.
Related questions
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Q1: Exception handling should not be used:
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Q1: Which of the following is not a member function of the C++ ostream class?
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b. Stream-extraction operator (>>).
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Q1: Which C++ data type was designed to store Unicode characters?
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Q1: Select the correct statement regarding C++ I/O streams:
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Q4: Abstract classes do not necessarily have:
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Q:
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virtual double earnings() const = 0;
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Q4[C++11]: Which of the following statements is true?a. In C++11, all classes can be used as base classes.b. In C++11, only classes that are not declared as final can be used as base classes.c. In C++11, only classes that are declared as base can be used as base classes.d. None of the above
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Q2: Which of the following is true about using inheritance in software engineering?
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b. It is best to create a huge class library to make it easy for a client to find the most appropriate class for his or her needs.
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Q3[C++11]: Which of the following statements about inheriting base class constructors is false?
a. To inherit a base class's constructors, you write the following line of code in the derived class definition (BaseClass is the base class's name):
using BaseClass::BaseClass;
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Q:
Q2: The delete [] operator:
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Q:
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Q3: An overloaded + operator takes a class object and a double as operands. For it to be commutative (i.e., a + b and b + a both work):a. operator+ must be a member function of the class from which the objects are instantiated.b. operator+ must be a non-member function.c. It must be overloaded twice; the operator+ function that takes the object as the left operand must be a member function, and the other operator+ function must be a global function.d. The + operator cannot be overloaded to be commutative.
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Q1: Which of the following is false?
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Q3: Assume that t is an object of class Test, which has member functions a(), b(), c() and d(). If the functions a(), b() and c() all return references to an object of class Test (using the dereferenced this pointer) and function d() returns void, which of the following statements will not produce a syntax error:
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Q:
Q2: Which of the following statements about friend functions and friend classes is false?a. A class can either grant friendship to or take friendship from another class using the friend keyword.b. A friend declaration can appear anywhere in a class definition.c. A friend of a class can access all of its private data member and member functions.d. The friendship relationship is neither symmetric nor transitive.
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Q2: A client changing the values of private data members is:
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d. Only possible if the private variables are not declared inside the class.
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Q2: Which of the following is not true of a destructor?
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Q2: Utility functions:
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d. Are a type of constructor.
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Q1: A function template can be overloaded by:
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b. Using non-template functions with the same name and different parameters.
c. Using non-template functions with a different name but the same parameters.
d. Using other function templates with a different name but the same parameters.
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Q1: Which of the following is true?a. Only class templates may specify default type arguments for type parameters.b. Only function templates may specify default type arguments for type parameters.c. Both class templates and function templates may specify default type arguments for type parameters.d. None of the above.
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Q1: Nontype parameters are:
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b. Specified before the angle-bracket-enclosed type-parameter list.
c. Constants.
d. Required for class templates.
Q:
Q3: Function templates:
a. Can include objects of template classes as parameters.
b. Must have return type T.
c. Do not need a separate template< typename type >statement if they take objects from a template class as a parameter.
d. Do not need a separate template< typename type >statement.