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Thread: How do I get this to work? Easy question, I'm just hopeless at it!

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    Unhappy How do I get this to work? Easy question, I'm just hopeless at it!

    This is a string reverse so it should just reverse a word you input into the string. My problem is I dont know how to input a word into the string...help please!!!

    The code:

    public class rev {

    public static String rev (String s) {
    String to_return = "";
    while(true) {
    if(s.equals("")) return to_return;

    char c = s.charAt(0);
    to_return += c;
    s=s.substring(1);


    }

    }

    }


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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Might want to check out the Scanner class.
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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    I had a look into this and I think your right about the scanner class but it still confuses me in how to get the string to work?

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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Not really sure what you mean. What have you tried? What are you stuck?
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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Well I want it to reverse the word "hello" to "olleh". But I don't know how to tell the java string above to do it.

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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Quote Originally Posted by akmi5 View Post
    Well I want it to reverse the word "hello" to "olleh". But I don't know how to tell the java string above to do it.
    That's the whole point of your assignment, is it not? So we can't just do it for you. Look at the String API for several useful functions.
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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Its not an assignment, its revision for my exam later this month. I've got about 40 different methods to learn and I need to learn how to do one well so I can use that as a template for the rest to learn etc.. So could you tell me how to make it run please? I've wasted enough time trying to get it to run its becoming stressful!

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    Default Re: How do I get this to work? Easy question, I'm just hopeless at it!

    Think about how you'd do this in your head, or with a piece of paper and a pencil. Not just for short words, but for really long words that you can't always just switch in your head.

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