Array Declaration and Definition
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Questions and Answers

What does an array consist of?

  • Ordered set of similar data items (correct)
  • Unordered set of dissimilar data items
  • Unordered set of similar data items
  • Ordered set of dissimilar data items
  • How are the elements of an array stored in memory?

  • In non-consecutive memory locations
  • In alternating memory locations
  • In consecutive memory locations (correct)
  • In random memory locations
  • When must an array be declared?

  • At the end of the program
  • Upon reaching the main function
  • After it is used
  • Before it is used (correct)
  • What does the size specified during array declaration inform the compiler to do?

    <p>Allocate and reserve memory locations</p> Signup and view all the answers

    In an array, what is the range of indices?

    <p>0 to (n-1)</p> Signup and view all the answers

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

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

    What happens if the number of values to be initialized is more than the size of the array in C language?

    <p>Compilation error occurs</p> Signup and view all the answers

    In C, how are the memory locations initialized when a partial array initialization is done?

    <p>All elements are set to zero automatically</p> Signup and view all the answers

    Which of the following will result in an automatic size determination of the array in C?

    <p>int d[5]={10};</p> Signup and view all the answers

    When an array is initialized with a string in C, why is the array size larger than the string length?

    <p>Due to an extra null character added at the end of the string</p> Signup and view all the answers

    What error occurs if an attempt is made to initialize an array using 'char b="COMPUTER"' in C?

    <p>'COMPUTER' exceeds maximum string length</p> Signup and view all the answers

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

    <p>Array grows dynamically depending on initial values</p> Signup and view all the answers

    Which statement accurately describes runtime initialization for arrays in C?

    <p>'scanf' is used to read user input and initialize arrays</p> Signup and view all the answers

    What is the outcome of initializing an integer array in C with more values than its specified size?

    <p>'Excess elements are ignored' without warnings</p> Signup and view all the answers

    How does C handle an array initialization where fewer values are provided than its size?

    <p>'Remaining elements automatically set to zero'</p> Signup and view all the answers

    What effect does adding a partial initialization have on the remaining uninitialized array elements in C?

    <p>Remain uninitialized without a default value</p> Signup and view all the answers

    What happens when the number of values to be initialized is less than the size of the array in C language?

    <p>The elements are initialized to zero automatically.</p> Signup and view all the answers

    When initializing an array in C with a string, why is the array size larger than the string length?

    <p>Strings are null-terminated, so an extra byte is allocated for the null character.</p> Signup and view all the answers

    In C, what occurs when an attempt is made to initialize an array using char b='COMPUTER'?

    <p>Compilation error due to incorrect single quotes usage.</p> Signup and view all the answers

    What effect does runtime initialization have on array elements in C?

    <p>Array elements are filled with user-entered values at execution time.</p> Signup and view all the answers

    How does C handle an array initialization with fewer values provided than its specified size?

    <p>Initializes the given values and sets the rest to zero by default.</p> Signup and view all the answers

    What error occurs with the declaration int a={9,2,4,5,6}; in C?

    <p>Too many initial values provided for the array size.</p> Signup and view all the answers

    Which statement regarding partial array initialization in C is correct?

    <p>'Partial array initialization initializes specific elements, leaving others untouched.</p> Signup and view all the answers

    'Initialization without size' in C refers to which scenario?

    <p>'Declaring an array without specifying its number of elements.'</p> Signup and view all the answers

    'Initialization with all zeros' in C involves which process?

    <p>'Setting all elements of the array to zero automatically.'</p> Signup and view all the answers

    In C, what determines the size of an array when initialized with fewer values than its capacity?

    <p>The number of elements explicitly mentioned during declaration.</p> Signup and view all the answers

    What is the syntax to declare an array in C with 5 elements of type float?

    <p>float array[5];</p> Signup and view all the answers

    If an array 'numbers' in C has been declared as 'int numbers[10];', what is the range of indices for this array?

    <p>0 to 9</p> Signup and view all the answers

    During initialization, what happens if more values are provided than the size specified for an array in C?

    <p>Values are truncated to fit the array size</p> Signup and view all the answers

    What does the statement 'int data[3] = {10, 20};' do in C?

    <p>Initializes the array to {10, 20, 0}</p> Signup and view all the answers

    If an array 'marks' is declared as 'float marks[5];' in C, what values will be stored in the array before initialization?

    <p>Garbage values</p> Signup and view all the answers

    What could be the consequence of initializing an array in C without specifying its size?

    <p>'Declaration syntax error' at compile time</p> Signup and view all the answers

    If an array 'characters' is declared as 'char characters[4];' in C, how many characters can it hold at maximum considering a null terminator at the end?

    <p>3 characters</p> Signup and view all the answers

    'int values[8];' is declared in C. What will be the state of all elements of 'values' before explicit initialization?

    <p>'Random values' for all elements</p> Signup and view all the answers

    What does 'int scores[] = {95, 88, 75};' represent when initializing an array in C?

    <p>'Scores' declared without size but with values assigned</p> Signup and view all the answers

    'float values[6];' is declared in C. How many bytes will be allocated to hold all elements of this array?

    <p>'24 bytes'</p> Signup and view all the answers

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