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Thread: Small question! Looking for help!

  1. #1
    Junior Member
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    Sep 2013
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    Default Small question! Looking for help!

    I was able to make it work fine with just the first part (asking for name and then displaying how was there day) But im trying to make it also ask how there day was while displaying the persons name, having some dificulties knowing how to get a name while also displaying the persons name.

    import javax.swing.JOptionPane;
     
    public class Day
    { 
        public static void main( String[] args )
        {
            String name = 
            JOptionPane.showInputDialog( "Oh hi, What's your name?" );
     
            String message = 
                    String.format( "Hello %s! How was your day?", name );
        }
        {
            String better = 
            JOptionPane.showInputDialog( "How could your day be better?" );
     
            String bettermessage = 
                    String.format( "Ok %s would make it better?", better );
     
            JOptionPane.showMessageDialog ( null, message );
        }
    }


    --- Update ---

    So i did some fiddling and got it to display the prompt again, but then it doesn't show the name, so im kinda inbetween!

    import javax.swing.JOptionPane;

    public class Day
    {
    public static void main( String[] args )
    {
    String name =
    JOptionPane.showInputDialog( "Oh hi, What's your name?" );

    String message =
    JOptionPane.showInputDIalog( "Hello %s! How was your day?", name );

    String better =
    JOptionPane.showInputDialog( "How could your day be better?" );

    String bettermessage =
    String.format( "Ok %s would make it better?", better );

    JOptionPane.showMessageDialog ( null, message );
    }
    }


  2. #2
    Member
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    Sep 2013
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    Default Re: Small question! Looking for help!

    So what is it you are struggling with? I am thinking you are struggling to get the concept of variables?

    In your line
    String name = JOptionPane.ShowInputDialgo("Oh hi, What's your name?" );
    You declare and initialize a String variable called name. This variable holds data so you can re-use it without having to request this information again. Anytime you wish to access its contents you would simply use the name of the variable.

    Simply take a look at your code since you call it in the next line. Now since you are using String.format you can see that where %s is at it replaces it with whatever string you provide it with.

    Here is an example to show you what is happening:
    String name = "Henry";
    int age = 20;
    System.out.printf("Hello %s!", name);
    System.out.printf("Hello %s, I am also %d years old! Goodbye %s", name, age, name);

    As you can see you can use multiple variables in a single line. The letter after % specifies the type of data you are going to provide it. For example you can not %s and provide it an int or it will complain.

    I know it was not my best explanation by far but hopefully you can get the gist of what is happening. If not be a little more specific on what you are attempting to accomplish.

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