cecs 100 ch8 – Flashcards

No, you cannot. All the items in an array must be of the same data type.

A nonnegative integer that specifies the size of an array.

No.

An individual storage location in an array

A number that identifies a specific element in an array.

Many languages support array bounds checking, which means they do not allow a program to use an invalid array subscript.

An off-by-one error occurs when a loop iterates one time too many or one time too few.

An algorithm developed for the purpose of locating a specific item in a larger collection of data, such as an array.

The first element in the array

The loop sequentially steps through each element in the array, comparing the elements to the value being searched for. When the value is found, the loop stops.

It looks at every element in the array.

You use a function similar to the contains function described in this chapter. The contains function returns true if a string is found inside another string, or false otherwise.

To calculate the total of the values in an array, you use a loop with an accumulator variable. The loop steps through the array, adding the value of each array element to the accumulator.

The first step in calculating the average of the values in an array is to get the sum of the values. You use the algorithm for totaling the values in an array to perform this. The second step is to divide the sum by the number of elements in the array.

You create a variables to hold the highest value. In the examples shown in this book, the variable is named highest. Then, you assign the value at element 0 to the highest variable. Next, you use a loop to step through the rest of the array elements, beginning at element 1. Each time the loop iterates, it compares an array element to the highest variable. If the array element is greater than the highest variable, then the value in the array element is assigned to the highest variable. When the loop finishes, the highest variable will contain the highest value in the array.

You create a variables to hold the lowest value. In the examples shown in this book, the variable is named lowest. Then, you assign the value at element 0 to the lowest variable. Next, you use a loop to step through the rest of the array elements, beginning at element 1. Each time the loop iterates, it compares an array element to the lowest variable. If the array element is less than the lowest variable, then the value in the array element is assigned to the lowest variable. When the loop finishes, the lowest variable will contain the lowest value in the array.

You assign the individual elements of the array that you are copying to the elements of the other array. This is usually the best loop.

You use the same subscript to access data items in the two arrays.