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C++ Arrays

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Questions and Answers

What is the primary advantage of using an array in C++?

To improve the performance of the program

To store values of different data types

To increase the memory usage of the program

To reduce the number of variables needed to store multiple values (correct)

What happens when the size of an array is declared in C++?

It is set to a default value of 10

It is ignored by the compiler

It remains the same throughout the program (correct)

It can be changed later in the program

How do you access elements of an array in C++?

Using the index followed by the array name

Using the index only

Using the array name only

Using the array name followed by the index (correct)

What is the index of the first element in an array in C++?

0 Signup and view all the answers

What can be said about the addresses of elements in an array in C++?

They are consecutive and contiguous Signup and view all the answers

What is true about the last element in an array of size n in C++?

It is stored at index n-1 Signup and view all the answers

What is the size of each element increased by in the code?

4 Signup and view all the answers

What happens when you declare an array without mentioning its size?

The compiler automatically computes the size Signup and view all the answers

What happens to the remaining places in an array when you initialize it with fewer elements than its size?

They are assigned random values Signup and view all the answers

How do you insert a value at the ith position in an array?

cin >> mark[i-1]; Signup and view all the answers

How do you print the first element of the array?

cout << mark[0]; Signup and view all the answers

What is the data type of the array 'numbers' in the given example?

int Signup and view all the answers