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Arrays

Posted on 1998-07-31
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Last Modified: 2010-03-30
Is there anyway of sending a 2-d array to a file????
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Question by:alanmin
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4 Comments
 
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mjenkins earned 30 total points
ID: 1229801
There is really no direct support for two dimensional arrays in Java. What you are really dealing with is an array of arrays.

So to write the whole thing to a file, just iterate through the outside array and each of the contained arrays in order.
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Author Comment

by:alanmin
ID: 1229802
What i really need to know though is how to send it to a file.
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LVL 3

Expert Comment

by:mjenkins
ID: 1229803
You didn't specify what kind of array it is. Is it an array of
primative types, or object? In either case, you can use a DataOutputStream ans just iterate through the tow arrays:

for( int i= 0; i < array.length; i++ )
{
      for( int j = 0; j < array[i].length; j++ )
      {
            ostream.writeInt( array[i][j] );
      }
}
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Author Comment

by:alanmin
ID: 1229804
got it sorted anyway ta!
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