Conditionals & Arrays

Which property can be used to return the number of rows in an array?

• length
• size
• rank
• noRows

Which will occur when an invalid array index is used in a statement?

• A syntax error will occur.
• A run-time error will occur.
• Extra elements will automatically be added to the array.
• The statement will be ignored.

Each element in a String array is automatically initialized to

• true
• false
• null
• Elements in a string array are not initialized.

The statement gameBoard[3][4] = "T"; assigns the element in the third row, fourth column the letter “T”.

• True
• False

An array has a fixed length.

• True
• False

Elements in an ArrayList must be

• integers.
• floating point numbers.
• Boolean values
• objects

Each element in a String array is automatically initialized to

• true.
• false.
• null.
• Elements in a string array are not initialized.

In an array, the index of the first item is

• 0
• 1
• 2
• 3

Which statement will display the value of 4.0?

• System.out.println(Math.sqrt(2));
• System.out.println(Math.abs(-16));
• System.out.println(Math.pow(2, 2));
• System.out.println(Math.pow(2));

Which is not a logical operator?

• And
• Or
• Not
• If