C# Arrays

You can declare an array without dimensioning its size, but the size must be determined before you can reference it.

• True
• False

In C# the length of an array cannot be changed. After it is instantiated with a length, dynamic resizing is not an option. 

• True
• False

The value of price.Length is 5

• True
• False

With the declaration of price, price[1] refers to

• 2.1
• 2.2
• 2.3
• 2.5

To declare memory for 4 exam scores that range in value from 0 to 100, the following declaration could be made

• int examScore = new examScore [3];
• int[ ] examScore = new examScore[3];
• int[ ] examScore = new examScore[4];
• int examScore = new examScore[4];

The index is also sometimes referred to as the _______ of an array.

• size
• variable
• subscript
• value

Given an array declared to hold 100 values, the smallest index that can be use with the array is 

• based on what index is used when the first value is placed in the array
• 0
• 1
• undetermined

One of the special properties in the array class is Length.  It returns

• an int representing the number of values currently stored in the array
• the length of an individual element of the array
• how much storage is consumed by the entire array
• an int representing the size of the array was dimensioned

In an array, every element has the same

• data type
• subscript
• memory location
• all of the above

What would be the correct declaration for a 2-dimensional array

• int [ ] sales = new int[2,3];
• int [ , , ] sales = new int [2,3];
• int [ , ] sales = new int [ ];
• int [ , ] sales = new int [2,3];