Small Java program help

[rawan]

HI,
im new in java world
and i shoud make this programe
i tried to make it but i couldn't

so,
i hope u to help me

this is the program



4. write a program that reads a string composed of 4 alphabetic characters; the program forms another string comosed of alphabetic characters following those in the first string. Print the resulting string.

Ex: input: dlpw output: emqx



pleaaaaaaaaaase help me

[PhHein]

Post your code. What doesn't work? Where are you stuck?

We certainly won't do your homework for you.

[rawan]

ok
i don't ask u to do it

just explain it for me

[PhHein]

loop over the String, get every single char, add 1 to each char, put chars into new String, done. Think about what should happen if the input String contains a 'z'.

[rawan]

can i do it in another way
not loop

[Fubarable]

can i do it in another way
not loop

You could do it using recursion, but I recommend using the loop as was recommended above.

Why can't you use a loop? Are there other conditions or requirements for this problem that we don't know as yet?

[rawan]

no but i didn't study it yet
the loop


this is my code but it doesn't work

import java.util.*;

public class Q4
{

static Scanner console = new Scanner (System.in);

public static void main(String [] args)
{

String word;
char s1,s2,s3,s4;

System.out.println(" Entr 4 alphabetic: ");
word = console.next();

s1 = word.charAt(1);
s2 = word.charAt(2);
s3 = word.charAt(3);
s4 = word.charAt(4);

System.out.print((char)(s1+1)+(char)(s2+1)+(char)(s3+1)+(char)(s4+1));

}
}

Moderator Edit: Code tags added

[gcalvin]

Character positions in Java Strings (and element positions in Java arrays and other ordered collections) begin at position 0, not position 1.

Hope that helps.

-Gary-

[Fubarable]

1) When your code doesn't work, please tell us why as it will make it 1000 times easier to help you.
2) Please use code tags when posting code here. My signature below can help show you how.
3) Your attempt is workable, but please note that the character position in Strings start at 0 not 1.
4) If you want to concatenate characters and show them in a print or println statement, you may want to first have an empty pair of quotes present:

System.out.println("" + s1 + s2 + s3 + s4);

Much luck!

[rawan]

thaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaanks

its work now

[Fubarable]

Wonderful! :)

[gcalvin]

Since you have it working now, I will show you how to do it in a loop (and maybe you will be a little bit ahead of your class :cool: ).

public class Q4a
{
    static Scanner console = new Scanner (System.in);

    public static void main(String[] args) {
        String word;
        char c;

        System.out.print(" Enter 4 alphabetic: ");
        word = console.next();
        for (int i = 0; i < 4; i++) {
            c = word.charAt(i);
            c += 1;
            System.out.print(c);
        }
    }
}

Good luck!

-Gary-