Int equals void

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

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:

Java 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:

Java 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

**JosAH** · 05-05-2010, 03:13 PM

Originally Posted by Insomniac Riot

Java 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

**JosAH** · 05-05-2010, 03:18 PM

Am I right that the codon number equals:

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

kind regards,

Jos

**Insomniac Riot** · 05-05-2010, 04:17 PM

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

**PhHein** · 05-05-2010, 04:42 PM

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

Java 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.

**JosAH** · 05-05-2010, 04:48 PM

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

**PhHein** · 05-05-2010, 04:51 PM

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

**JosAH** · 05-05-2010, 04:53 PM

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 ;-)

**PhHein** · 05-05-2010, 04:58 PM

Aye sir, off to the quarry.

**JosAH** · 05-05-2010, 05:12 PM

Originally Posted by PhHein

Aye sir, off to the quarry.

And don't call me Miss!

kind regards,

Jos ;-)

**Tolls** · 05-05-2010, 06:10 PM

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...:)

**JosAH** · 05-05-2010, 06:17 PM

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 ... ;-)

**Insomniac Riot** · 05-06-2010, 03:33 PM

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.

**Tolls** · 05-06-2010, 03:38 PM

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:

Java Code:

int codonNumber = 0;
getCodon(codonNumber);

codonNumber will always be zero after that call, whatever happens in the getCodon() method.

**Insomniac Riot** · 05-06-2010, 03:44 PM

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

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