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BOOK: Stephens' C# Programming with Visual Studio 2010 24-Hour Trainer
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Old June 11th, 2013, 04:47 PM
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Default Multi-Dimensional Arrays, pg.198

I thought I understood arrays until I read your example on pg. 198.

It's a four by eight array, so why wouldn't it be:

int[ , ] values = new int[4, 8];

values[0, 0] = 0 * 0;
...
values[3, 7] = 3 * 7;


that is, the array is initialized to 4 x 8 (4 rows, 8 columns) not [5, 7] as shown in the text, and

the last "box" is values[3, 7] not values[4, 7] as in the text.

and the last box holds the results of 3 * 7, not 4 * 7 ...
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Old June 11th, 2013, 08:36 PM
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Default

There's a typo in that code. It was reported but I don't know if it made it to the errata page. The array should be created as:

Code:
new int[5, 7]
It then has rows 0 through 4 and columns 0 through 7.

You're right that the one in the picture would be declared new int[4, 8].
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Old June 12th, 2013, 01:10 PM
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Default

If it was int[5,7]

would it not have

rows 0 through 4 and columns 0 through 6,( not 0 through 7) ??.
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Old June 12th, 2013, 01:59 PM
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Yes, you're right.
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