Java homework help

[MohtasaUnique]

So bare with me, I'm just now learning java, and I literally know nothing about it. I have a homework problem where I'm supposed to program some stupid DJ Name generator

I have this code: http://pastebin.com/cRwrMZNt

And the problem is, if I use Scanner, lines 7 and 10 give an error because non-static variable scan cannot be referenced from a static context. If I use static Scanner, lines 8 and 11 give an error because non-static method substring(int,int) cannot be referenced from a static context. Or something like that, idk


It was probably stupid to try, but I also tried importing both a static and non-static scanner, and that didn't solve the issue...


How do I fix this?

 

[iJava]

http://pastie.org/5748784

That should work.

You don't do String.substring(), you use it like this :

String penis = "yourgay";
penis.substring(1, 3);

 

[Clashfan]

What iJava said, and put your scanner inside your main class, or make it static

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

 

[MohtasaUnique]

I'm still getting a shitton of errors.

http://pastebin.com/P2rLhFZ5

But maybe it's because of the internet compiler...... I'm using compilr.com, maybe it sucks ass?

I never had a problem like this when I was working with jGrasp, and SuF and I worked a lot with scanners.

 

[Clashfan]

Paste what your code is now

 

[MohtasaUnique]

http://pastebin.com/a67qhKZX

 

[iJava]

I'm still getting a shitton of errors.

http://pastebin.com/P2rLhFZ5

But maybe it's because of the internet compiler...... I'm using compilr.com, maybe it sucks ass?

I never had a problem like this when I was working with jGrasp, and SuF and I worked a lot with scanners.

i changed the class name to DJName.java couldn't help myself

 

[Clashfan]

    public class djName
    {
           
            public static void main(String[] args)
            {
                    Scanner scan = new Scanner(System.in);
                    System.out.println("What is your first Name?");
                    String firstName = scan.nextLine();
                    String firstNamePrint = firstName.substring(0, firstName.length() / 2);
                    System.out.println("What is your last Name?");
                    String lastName = scan.nextLine();
                    String lastNamePrint = lastName.substring(lastName.length() / 2, lastName.length());
                    System.out.println("Your DJ Name is: " + firstNamePrint + lastNamePrint + "izzle");
            }
    }

Try that, you had String.substring instead of firstName.substring, and your class name needs to be the same as your file name (assuming your file was still called djName.java)

 

[MohtasaUnique]

I've used your code and it entirely eliminated all of the static vs non-static variables.


However, there's a new problem:

http://pastebin.com/tNPiUehu

 

[Clashfan]

    import java.util.Scanner;
    public class djName
    {
           
            public static void main(String[] args)
            {
                    Scanner scan = new Scanner(System.in);
                    System.out.println("What is your first Name?");
                    String firstName = scan.nextLine();
                    String firstNamePrint = firstName.substring(0, firstName.length() / 2);
                    System.out.println("What is your last Name?");
                    String lastName = scan.nextLine();
                    String lastNamePrint = lastName.substring(lastName.length() / 2, lastName.length());
                    System.out.println("Your DJ Name is: " + firstNamePrint + lastNamePrint + "izzle");
            }
    }

You need to import scanner

 

[iJava]

You need to import scanner.

 

[MohtasaUnique]

I thought that's what Scanner scan = new Scanner(System.in); was.


EDIT: NEVERMIND!! That's import java.util.Scanner;


EDITEDIT: Gorgeous, it compiled with no errors. Thanks guys c:

EDITEDITEDIT: new problem http://pastebin.com/0jvbYmEj

 

[iJava]

You need to change the main class name on the online site to the name of your class.

 

[MohtasaUnique]

I didn't have the class named djName.java, but it insisted on naming it "Program" so I changed it back to Program and it works perfectly. That's fine by me I guess, I'll change it back again when I copy the script over to my jGrasp program at home.

Thanks for the help broskis. I'll reopen and bump this if I can't figure out the second homework program I'm supposed to make.

Just finished the second program in under 5 minutes, I'M LEARNING! Thanks again for the help