A weird message [[I@ab54eb

[Yakg]

Hi, I have tried to solve this problem but I am also curious about what does this message from the compiler means? [[I@ab54eb
and why is that happens in my case?

I'm trying to write a toString method for a multi dimensional array as this:

public String toString (){
String result ="";
for (int row=0; row<array.length; row++){
for (int column=0; column<array[row].length; column++){
result = array [row] [column] +"\t";
}
}
result = result+"\n";
return result;
}

//Thank you for helping.

[Fubarable]

Is your array variable a multi-dimensional array of Integer objects? You're getting a default toString output from an array, and it suggests possibly a 2-dimensional Integer (or int?) array. Since result is a already the the array item held in a 2-D array, I have to wonder if that array item also holds an array.

Also, to help us help you, please read my link below on how to use code tags.

Much luck!

Edit, it's the toString for a 2D int array, not an Integer array. The first part of the "weird message" above, the "[[I" is the class name of the array.

[[ -- means a 2D array, and
I -- means of an int.

The second part of the "weird message" -- "@ab54eb", is '@' followed by the hashCode representation of the object in hex notation. This is likely the internal address of the array object, but not necessarily.

You can read up on all this in the API for Object: http://download.oracle.com/javase/6/...ng/Object.html

[Yakg]

I guess I forgot to initialize its size...