Int equals void

Printable View

05-05-2010, 03:08 PM
Insomniac Riot

Int equals void

I am building a applet that can read inputs from the user to make codons for DNA, so my teacher can use it. It reads the first three characters to make a codon, uses those characters to get a value (1, 2, 3 or 4), takes those character values to make a codon value (1 - 64), and then changes that codon value into the Amino Acid name. I am trying to take this int value, called codonNumber, and make it equal a different number, called from a void called getCodon. Can anyone help me? This is my error:

Code:

/tmp/jc_20900/DNA.java:144: getCodon(int) in DNA cannot be applied to () codonNumber = getCodon(); ^ 1 error

And this is the section of code I have the error in:

Code:

if(firstInput != 0 && secondInput != 0 && thirdInput != 0) { codonNumber = getCodon(); } } public static void getCodon(int codonNumber){ if(firstInput == 1) { if(secondInput == 1) { if(thirdInput == 1) { codonNumber = 1; } else if(thirdInput == 2) { codonNumber = 2; } else if(thirdInput == 3) { codonNumber = 3; } else if(thirdInput == 4) { codonNumber = 4; } } else if(secondInput == 2) { if(thirdInput == 1) { codonNumber = 5; } else if(thirdInput == 2) { codonNumber = 6; } else if(thirdInput == 3) { codonNumber = 7; } else if(thirdInput == 4) { codonNumber = 8; } } else if(secondInput == 3) { if(thirdInput == 1) { codonNumber = 9; } else if(thirdInput == 2) { codonNumber = 10; } else if(thirdInput == 3) { codonNumber = 11; } else if(thirdInput == 4) { codonNumber = 12; } } else if(secondInput == 4) { if(thirdInput == 1) { codonNumber = 13; } else if(thirdInput == 2) { codonNumber = 14; } else if(thirdInput == 3) { codonNumber = 15; } else if(thirdInput == 4) { codonNumber = 16; } } } else if(firstInput == 2) { if(secondInput == 1) { if(thirdInput == 1) { codonNumber = 17; } else if(thirdInput == 2) { codonNumber = 18; } else if(thirdInput == 3) { codonNumber = 19; } else if(thirdInput == 4) { codonNumber = 20; } } else if(secondInput == 2) { if(thirdInput == 1) { codonNumber = 21; } else if(thirdInput == 2) { codonNumber = 22; } else if(thirdInput == 3) { codonNumber = 23; } else if(thirdInput == 4) { codonNumber = 24; } } else if(secondInput == 3) { if(thirdInput == 1) { codonNumber = 25; } else if(thirdInput == 2) { codonNumber = 26; } else if(thirdInput == 3) { codonNumber = 27; } else if(thirdInput == 4) { codonNumber = 28; } } else if(secondInput == 4) { if(thirdInput == 1) { codonNumber = 29; } else if(thirdInput == 2) { codonNumber = 30; } else if(thirdInput == 3) { codonNumber = 31; } else if(thirdInput == 4) { codonNumber = 32; } } } else if(firstInput == 3) { if(secondInput == 1) { if(thirdInput == 1) { codonNumber = 33; } else if(thirdInput == 2) { codonNumber = 34; } else if(thirdInput == 3) { codonNumber = 35; } else if(thirdInput == 4) { codonNumber = 36; } } else if(secondInput == 2) { if(thirdInput == 1) { codonNumber = 37; } else if(thirdInput == 2) { codonNumber = 38; } else if(thirdInput == 3) { codonNumber = 39; } else if(thirdInput == 4) { codonNumber = 40; } } else if(secondInput == 3) { if(thirdInput == 1) { codonNumber = 41; } else if(thirdInput == 2) { codonNumber = 42; } else if(thirdInput == 3) { codonNumber = 43; } else if(thirdInput == 4) { codonNumber = 44; } } else if(secondInput == 4) { if(thirdInput == 1) { codonNumber = 45; } else if(thirdInput == 2) { codonNumber = 46; } else if(thirdInput == 3) { codonNumber = 47; } else if(thirdInput == 4) { codonNumber = 48; } } } else if(firstInput == 4) { if(secondInput == 1) { if(thirdInput == 1) { codonNumber = 49; } else if(thirdInput == 2) { codonNumber = 50; } else if(thirdInput == 3) { codonNumber = 51; } else if(thirdInput == 4) { codonNumber = 52; } } else if(secondInput == 2) { if(thirdInput == 1) { codonNumber = 53; } else if(thirdInput == 2) { codonNumber = 54; } else if(thirdInput == 3) { codonNumber = 55; } else if(thirdInput == 4) { codonNumber = 56; } } else if(secondInput == 3) { if(thirdInput == 1) { codonNumber = 57; } else if(thirdInput == 2) { codonNumber = 58; } else if(thirdInput == 3) { codonNumber = 59; } else if(thirdInput == 4) { codonNumber = 60; } } else if(secondInput == 4) { if(thirdInput == 1) { codonNumber = 61; } else if(thirdInput == 2) { codonNumber = 62; } else if(thirdInput == 3) { codonNumber = 63; } else if(thirdInput == 4) { codonNumber = 64; } } } }

For your information, the brackets are correct, its just that the second closing bracket is the last ending bracket for my Main method. =p
05-05-2010, 03:13 PM
JosAH

Quote:

Originally Posted by Insomniac Riot

Code:

/tmp/jc_20900/DNA.java:144: getCodon(int) in DNA cannot be applied to () codonNumber = getCodon(); ^ 1 error

Your getCodon( ... ) method needs an int parameter; you are not supplying it an int, you are trying to call that method without any parameters at all; that makes your compiler whine at you.

kind regards,

Jos
05-05-2010, 03:18 PM
JosAH

Am I right that the codon number equals:

16*(firstInput-1)+4*(secondInput-1)+thirdInput?

kind regards,

Jos
05-05-2010, 04:17 PM
Insomniac Riot

Ummmmmm, no. Lol. That isn't how I had the formula. I think I know how to fix it now.
05-05-2010, 04:42 PM
PhHein

Uhm, I think this is close to what you need:

Code:

String s4 = String.valueOf(firstInput -1) + String.valueOf(secondInput -1) + String.valueOf(thirdInput -1); codonNumber = Integer.parseInt(s4, 4) +1;

That would reduce the nested ifs a little.
05-05-2010, 04:48 PM
JosAH

Quote:

Originally Posted by Insomniac Riot

Ummmmmm, no. Lol. That isn't how I had the formula. I think I know how to fix it now.

Strange, because that little formula works for me; please elaborate and show us the magic secret! ;-)

kind regards,

Jos
05-05-2010, 04:51 PM
PhHein

Quote:

Originally Posted by JosAH

Strange, because that little formula works for me; please elaborate and show us the magic secret! ;-)

kind regards,

Jos

Gaaah, I didn't see the -1 in your formula :D
05-05-2010, 04:53 PM
JosAH

Quote:

Originally Posted by PhHein

Gaaah, I didn't see the -1 in your formula :D

You go and bite those numbers in stone with your teeth!

kind regards,

Jos ;-)
05-05-2010, 04:58 PM
PhHein

Aye sir, off to the quarry.
05-05-2010, 05:12 PM
JosAH

Quote:

Originally Posted by PhHein

Aye sir, off to the quarry.

And don't call me Miss!

kind regards,

Jos ;-)
05-05-2010, 06:10 PM
Tolls

Quote:

Originally Posted by JosAH

Your getCodon( ... ) method needs an int parameter; you are not supplying it an int, you are trying to call that method without any parameters at all; that makes your compiler whine at you.

kind regards,

Jos

Then they'll get an error because getCodon doesn't actually return anything (void), and they're assigning that to the int.

But it's apparently all sorted now...:)
05-05-2010, 06:17 PM
JosAH

Quote:

Originally Posted by Tolls

But it's apparently all sorted now...:)

Oh great, I don't pay attention for one meager minute and they sort it all out behind my back, it's not fair! What'd happen if I started to sort things out behind their backs? Hm? That's what I'm all about, it's not fair! So there.

kind regards,

Jos (<--- staring at the folks with the syringes and their white coats ... ;-)
05-06-2010, 03:33 PM
Insomniac Riot

Lol thanks guys for posting. I just called the void instead of making the getCodon equal the void. I mean, if you looked inside the getCodon method, you could see that it would already happen. =p Now I have to make Jmenu buttons with actions, so commands like "Transcribe" and "Translate" will work. Any help with that would be nice, or just send a URL of where it could teach it noob friendly.
05-06-2010, 03:38 PM
Tolls

Well, in the original posted code your codonNumber might be being set in the method, but it's not being past out. For example this call:

Code:

int codonNumber = 0; getCodon(codonNumber);

codonNumber will always be zero after that call, whatever happens in the getCodon() method.
05-06-2010, 03:44 PM
Insomniac Riot

Oh, didn't see that before. Thanks for pointing that out.