Array Declaration and Definition in Programming
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Questions and Answers

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?

    <p>data_type array_name[n];</p> Signup and view all the answers

    How are arrays initialized at compile time?

    <p>By initializing only specified memory locations</p> Signup and view all the answers

    Which statement describes array initialization without size?

    <p>It dynamically adjusts the size during runtime</p> Signup and view all the answers

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

    <p>= {list of values};</p> Signup and view all the answers

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

    <p>(n-1) accounts for the end element being exclusive</p> Signup and view all the answers

    'Partial array initialization' means:

    <p>*Initializing only some elements in an array</p> Signup and view all the answers

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

    <p>*Each element represents a character in a string.</p> Signup and view all the answers

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

    <p>int a={9,2,4,5,6};</p> Signup and view all the answers

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

    <p>All elements are initialized to zero automatically.</p> 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'};'?

    <p>8</p> Signup and view all the answers

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

    <p>The array size is set to 1 more than the string length.</p> Signup and view all the answers

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

    <p>Prompts the user to input values for array initialization.</p> 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);'?

    <p>'scanf' will initialize all elements of 'x' with the same input value.</p> Signup and view all the answers

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

    <p>The size is determined by the number of initial values provided.</p> 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?

    <p>Number of initial values provided in the declaration.</p> 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?

    <p>'char b[]=&quot;COMPUTER&quot;;'</p> Signup and view all the answers

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