array prints weird stuff

plux · July 2015

Hi, I have this simple code that does not work in my sketch. I have a function which creates and prints an array of 3 elements..but I don't understand why it will print weird stuff instead of the values stored inside of it

void makeChord(int tuning){

    float[] chord = new float[3];
    chord[0] = 10;
    chord[1] = 11;
    chord[2] = 12;
    println("CHORD "+chord);
}

will print something like

CHORD [F@704c6d5c
CHORD [F@299fec9d
CHORD [F@42674cc4
CHORD [F@be0f9eb
CHORD [F@436c8512

the function gets callend inside another function that's inside the draw. if I put this code in the draw, it will throw the same result. In a new sketch instead it will work fine. no errors in the console

same result also if I do this way

float[] chord = {10,10,10};
println("CHORD "+chord);

note that I have other arrays in the same sketch and they all work fine) thanks

koogs · July 2015

Standard Java functionality. If you want to see the elements you have to iterate through the array and print then individually.

plux · July 2015

that's weird because with my other arrays it works without problems..

like the example in the docs

GoToLoop · July 2015

final byte[] chord = { 10, 11, 12 };
println("CHORD:");
println(chord);
exit();

plux · July 2015

ok but what's the difference? the 'final' keyword?

GoToLoop · July 2015

In order to println() some array correctly, it needs to go there alone!
We can also use printArray() too: https://Processing.org/reference/printArray_.html

plux · July 2015

good..thanks!

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