Thread: One string Text message into array of strings(letters)

I need to convert a text message from the command line into an array of letters.

args(0) is a string, for example "The sky is beautiful today". And I want it to become theskyisbeautifultoday

args(o) could be any sentence

Eclipse keep showing error for:

String str = args(0);
char[] chs = str.toCharArray();


What could be wrong?

args is an array. if you want to access the first element, i.e. your sentence the syntax is

String str = args[0];

Thanks for your reply
Actually, args(0) = "The sky is beautiful today"
So args(0) is one string
args(0) is set by the user and could be any other text message

Yes, sorry.

So I don't need to convert it to an array.

I need to change args(0) from "The sky is beautiful today" to theskyisbeautifultoday

I have tried

String [] mess = args(0).toLowerCase(args(0));

but I am not sure it is right and Eclipse keeps returning error.

Where did I go wrong?

Thanks

args(0) = "The sky is beautiful today"

I will encrypt this message later in a Caesar Box.

The error message is:

The method args(int) is undefined for the type CaesarBox

*ps: CaesarBox is the Class name


I understand this error could happen if I don't set an input, in this case if I don't set args(0), but I did.

Thanks.

args(0) is the input argument set by the user(text message)

--- Update ---

Sorry, args[0]

So it would be

String [] mess = args[0].toLowerCase(args[0]);

String [] mess = args[1].toLowerCase(args[1]);

Error:

args cannot be resolved to a variable

--- Update ---

Sorry just saw your reply now.

--- Update ---

String mess = args[0].toLowerCase(args[0]);

The error continues

public static void main(String[] args) {
// CaesarsBox <-encrypt|-decrypt>

if(args[0].equals("-encrypt")){
System.out.println(encrypt(args[1]));
}
else if(args[0].equals("-decrypt")){
System.out.println(decrypt(args[1]));
}
}

public static String encrypt(String plainText) {


String mess = args[1].toLowerCase(args[1]);



}

public static String decrypt(String cypherText) {

}

}




How to use code tags?

An example is below:

public class CaesarBox {
 
	public static void main(String[] args) {
		// CaesarsBox <-encrypt|-decrypt> 
 
		if(args[0].equals("-encrypt")){
			System.out.println(encrypt(args[1]));
		}
 
	}
 
	public static String encrypt(String plainText) {
 
 
	String s = plainText.toLowerCase();
 
    System.out.println(s);
 
    return s;
 
 
 
 
	}
 
}

The problem now is: why it is not printing s?

Hi Norm
Thank you
It was - encrypt but should have been -encrypt, so a blank space was the problem.

Now I need to take out all the blank spaces of s. Any idea of how could I do that?

only with no spaces. Thanks

Now it is right. This was solved. Thanks.