Thread: upcoming assignment in 2D arrays - for preparation, can someone describe the importance of a 2d array?

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V

Also for functionality, a for loop can be used to step through a 2d array, like this:

for(Type[] arrayName : Type[][] otherArray){
}

I'm assuming you probably already know this, but just incase.

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Of course

When we have

for(int x : array)

Its basically saying:
Ok, loop through the array 'array', treating each element as x.

So

for(int x : array){
  x--;
}

would subtract 1 from every element in the array.
Understand?
Its basically the same for 2d arrays.

for(int[] x : twoDArray){
  System.out.print(x.length);
}

The above code sample would print out the length of every row in the 2D array.

Hpe I helped!

- vividMario52

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