Exam 7: Arrays and the Arraylist Class

What would be the results after the following code was executed? int[] x = {23, 55, 83, 19}; Int[] y = {36, 78, 12, 24}; X = y; Y = x;

To compare the contents of two arrays, you must compare the elements of the two arrays.

Java performs ____________, which means that it does not allow a statement to use a subscript that is outside the range of valid subscripts for the array.

What will be the results of the following code? final int ARRAY_SIZE = 5; Double[] x = new double[ARRAY_SIZE]; For(int i = 1; i <= ARRAY_SIZE; i++) { X[i] = 10.0; }

A search algorithm:

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

Declaring an array reference variable does not create an array.

Once an array is created, its size cannot be changed.

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

The following statement creates an ArrayList object. What is the purpose of the <String> notation? ArrayList<String> arr = new ArrayList<String>();

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

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

What do you normally use with a partially-filled array?

Which of the statements are true about the following code? final int ARRAY_SIZE = 10; Long[] array1 = new long[ARRAY_SIZE];

Subscript numbering always starts at what value?

This ArrayList class method deletes an item from an ArrayList.

The sequential search algorithm:

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

This ArrayList class method is used to insert an item into an ArrayList.

To return an array of long values from a method, use this as the return type for the method.