Array Declaration and Definition in Programming

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What is the main characteristic of an array?

Elements are stored in random memory locations
It is a collection of different data types
All elements are of the same data type (correct)
Elements cannot be accessed using a name

When should an array be declared?

After it is used in the program
At the end of the program
Before it is used in the program (correct)
When its size is not specified

What information does specifying the size of an array during declaration provide to the compiler?

Number of elements in the array (correct)
Values to initialize the array with
Type of data in the array
Position of each element in memory

What is the syntax for declaring an array with 'n' data items?

data_type array_name[n]; (A) Signup and view all the answers

How are arrays initialized at compile time?

By initializing only specified memory locations (B) Signup and view all the answers

Which statement describes array initialization without size?

It dynamically adjusts the size during runtime (C) Signup and view all the answers

In which way can array elements be initialized with int, char, etc., during declaration?

= {list of values}; (A) Signup and view all the answers

'0 to (n-1)' represents the range of an array because:

(n-1) accounts for the end element being exclusive (D) Signup and view all the answers

'Partial array initialization' means:

*Initializing only some elements in an array (A) Signup and view all the answers

'String initialization' is a special kind of array initialization where:

*Each element represents a character in a string. (C) Signup and view all the answers

Which of the following array initialization statements would result in a compilation error?

int a={9,2,4,5,6}; (B) Signup and view all the answers

What happens when a partial array initialization is done in C language?

All elements are initialized to zero automatically. (D) Signup and view all the answers

What is the size of the array 'b' in the statement 'char b[]={'C','O','M','P','U','T','E','R'};'?

8 (D) Signup and view all the answers

How is an array initialized when a string is used in C language?

The array size is set to 1 more than the string length. (B) Signup and view all the answers

What does the 'scanf' function do in array initialization?

Prompts the user to input values for array initialization. (D) Signup and view all the answers

What would be the result of initializing an integer array 'x' using 'scanf("%d %d%d",&x,&x,&x);'?

'scanf' will initialize all elements of 'x' with the same input value. (D) Signup and view all the answers

In C language, what happens if no size is specified during array initialization?

The size is determined by the number of initial values provided. (D) Signup and view all the answers

If an array declaration does not specify size but provides initial values, what determines the size of the array?

Number of initial values provided in the declaration. (D) Signup and view all the answers

'char b="COMPUTER";' would cause a compilation error. What is the correct way to initialize this character variable with the string?

'char b[]="COMPUTER";' (D) Signup and view all the answers