The following program generates an error. Why? finalintNUM_ELEMENTS=5; int[] userVals = new int[NUM_ELEMENTS]; int i; userVals[0] = 1; userVals[1] = 7; userVals[2] = 4; for (i = 0; i <= userVals.length; ++i) { System.out.println(userVals[i]); }     a.   Variable i is never initialized.     b.   The array userVals has 5 elements, but only 3 have values assigned.     c.   The integer NUM_ELEMENTS is declared as a constant     d.   The for loop tries to access an index that is out of the array's valid range.     JAVA

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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  1. The following program generates an error. Why?

    finalintNUM_ELEMENTS=5;
    int[] userVals = new int[NUM_ELEMENTS];
    int i;
    userVals[0] = 1;
    userVals[1] = 7;
    userVals[2] = 4;

    for (i = 0; i <= userVals.length; ++i) {
    System.out.println(userVals[i]);
    }









     

      a.

     

    Variable i is never initialized.

     

      b.

     

    The array userVals has 5 elements, but only 3 have values assigned.

     

      c.

     

    The integer NUM_ELEMENTS is declared as a constant

     

      d.

     

    The for loop tries to access an index that is out of the array's valid range.

     

     

    JAVA

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