java: basic cipher

Matthewthebig

For my college assignment this week i have to make a program that encrypts some text using a basic Caesar Cipher(ie shifting the letters) In the first box is my code and in the 2nd is my error message. Could anyone shed some light on what is wrong. As when i have the touchMe() part out of a methods it runs perfectly but we must use a method. so any help please.

public class Ciphers
{
	static void touchMe(char []alphaUp, char []alphaLow, char c1, int blah, char[] replaced)
	{	
		for (int j = 0; j < alphaUp.length; j++)
		{
			if (j < 23)
			{
				if (c1 == alphaUp[j])
				{
					replaced[blah] = alphaUp[j + 3];
					blah++;
				}
				else if (c1 == alphaLow[j])
				{
					replaced[blah] = alphaLow[j + 3];
					blah++;
				}
			}
			else if (22 < j && j < 26)
			{
				if (c1 == alphaUp[j])
				{
					replaced[blah] = alphaUp[j - 23];
					blah++;
				}
				else if (c1 == alphaLow[j])
				{
					replaced[blah] = alphaLow[j - 23];
					blah++;
				}
			}
			else
			{
				if (c1 == alphaUp[j])
				{
					replaced[blah] = alphaUp[j];
					blah++;
				}
			}
		}
	}

	public static void main(String [] args)
	{
		char [] alphaUp = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',' ','.','?','!',',','\'','@',';',':','#','"'};
		char [] alphaLow = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
		char [] replaced = new char [4000000];
		int blah = 0;
		
		//read in string
		System.out.println("Please enter the text you wish to encode: ");
		String encodee = Console.readString();
		
		//loops around for the length of the the String
		for (int i = 0; i < encodee.length(); i++)
		{
			//gets char at location of string
			char c1 = encodee.charAt(i);

			touchMe(char alphaUp[], char alphaLow[], char c1, int blah, char replaced[]);
		}
			
		for (int a = 0; a < encodee.length(); a++)
		{
			System.out.print(replaced[a]);
		}
	}
}

Ciphers.java:61: '.class' expected
                        touchMe(char alphaUp[], char alphaLow[], char c1, int blah, char replaced[]);
                                     ^
Ciphers.java:61: ')' expected
                        touchMe(char alphaUp[], char alphaLow[], char c1, int blah, char replaced[]);

                    ^
2 errors

information

heres the solution

void method(String s){
}

String input = "";

method(input);

Matthewthebig

I don't understand what you mean by that

PhantomBeaker

There are two parts to a method.

void mymethod(int i, double d, char c){ // This is the method "description" - it tells you what it expects as input)
 //stuff
}

now if I want to call mymethod

int weeble = 0;
double bob = 0.0;
char splat = '0';

mymethod(weeble, bob, splat);

Notice that when I'm calling mymethod, I'm not telling it what types of variable they are, because the method knows what to expect, and the compiler already knows what type of variable weeble, bob and splat are, so it can see that they 'fit' the method description.

Does that help at all?

Aoife

Matthewthebig

Ah brilliant. It now compiles. Now i just need to fix the new problem