6- Assuming myValues is an array of int values and index is an int variable, both of the following statements do the same thing. cout « myValues[index] << endl; cout « *(myValues + index) << endl; 7- An alternative to using the open member function is to use the file stream object declaration 2. itself to open the file. For example: fstream DataFile("names.dat", ios::in | ios::out); 8- When passing a file stream object to a function, you should always pass it by reference.

6) True. cout<<myValues[index]<<endl; This code outputs the value in array myValues at the index index. It is the most common method of retrieving. cout<< *(myValues + index) << endl; This code will also outputs the same. Here myValues contains the address of the begining of the array. When we add index to it, we have the address of the specified index. We use *(pointer) to access the value present at the address. 7) True fstream DataFile("names.dat", ios::in | ios:out); is an alternative method to using the open member function. We could also use this instead open member function. 8) True. It is essential to pass by reference because the internal state of file stream objects will change with almost every operation. So it is essential to pass functions by reference to ensure the consistency. [ Kindly note that we are only allowed to answer the first 3 in case of multiple questions as per our guidelines. You can post remaining as another question.Thanks in advance for understanding.]

Answered: 6- Assuming myValues is an array of int values and index is an int variable, both of the following statements do the same thing. cout « myValues[index] << endl;…

Database System Concepts

7th Edition

ISBN: 9780078022159

Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher: McGraw-Hill Education

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Concept explainers

Introduction to Template

A template in C++ programming helps to pass data type as a parameter to make the code reusable. The goal is to write a generic code that can be reused for specific types depending upon the need.

Question

True False questions :

6- Assuming myValues is an array of int values and index is an int variable, both of the
following statements do the same thing.
cout « myValues [index] << end ;
cout « * (myValues + index) <« endl;
7- An alternative to using the open member function is to use the file stream object declaration
1.
2.
itself to open the file. For example:
fstream DataFile ("names.dat"
ios::in | ios::out) ;
8- When passing a file stream object to a function, you should always pass it by reference.
9- The try/catch/throw construct is able to handle only one type of exception in a try block.
10- The try block of a try/catch construct is used to display the definition of an exception parameter.
11- In an inheritance situation, you may not pass arguments to a base class constructor.
12- A derived class may become a base class if another class is derived from it.
13- The Standard Template Library (STL) contains templates for useful algorithms and data
structures.
14- The STL provides many algorithms which are implemented as function templates and are
included in the <algorithm> header file.
15- To solve a problem recursively, you must identify at least one case in which the problem can be
solved without recursion.

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