Exam 7: Arrays and the ArrayList Class

When an array is passed to a method

What does the following statement do? Double[] array1 = new double[10];

The following import statement is required to use the ArrayList class:

What will be the result of executing the following code? Int[] x = {0, 1, 2, 3, 4, 5};

Objects in an array are accessed with subscripts, just like any other data type in an array.

If numbers is a two-dimensional array, which of the following would give the number of columns in row r?

You can use this ArrayList class method to insert an item at a specific location in an ArrayList.

A sorting algorithm is a technique for scanning through an array and rearranging its contents in some specific order.

Which of the following is a valid declaration for a ragged array with five rows, but no columns?

In order to do a binary search on an array,

To determine if two arrays are equal, you must compare each of the elements of the two arrays.

You can use the ________ method to replace an item at a specific location in an ArrayList.

Any items typed on the command-line, separated by space, after the name of the class are considered to be one or more arguments that are to be passed into the main method.

What will be the result of the following code? Final int ARRAY_SIZE = 5; Float[] x = float[ARRAY_SIZE]; For(int i = 1; i <= ARRAY_SIZE; i++) { X[i] = 10.0; }

The sequential search algorithm

A search algorithm

The ________ method removes an item from an ArrayList at a specific index.

A sorting algorithm is used to locate a specific item in a larger collection of data.

An ArrayList object automatically expands in size to accommodate the items stored in it.

What is the value of scores[2][3] in the following array? Int[][] scores = { {88, 80, 79, 92}, {75, 84, 93, 80}, {98, 95, 92, 94}, {91, 84, 88, 96} };