Scanner no class error

I'm new to java and i have a problem while trying to run my program. I'm using eclipse.

import java.util.Scanner;

public class Scan {
    public static void main(String[] args) {
        String imie;
        Scanner odczyt = new Scanner(System.in);

        imie=odczyt.nextLine();

        System.out.println("Witaj "+imie);
    }}

This what I get:

EDIT(Runned without dot)

     Exception in thread "main" java.lang.NoClassDefFoundError: Scan
    Caused by: java.lang.ClassNotFoundException: Scan
         开发者_运维知识库   at java.net.URLClassLoader$1.run(Unknown Source)
            at java.security.AccessController.doPrivileged(Native Method)
            at java.net.URLClassLoader.findClass(Unknown Source)
            at java.lang.ClassLoader.loadClass(Unknown Source)
            at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
            at java.lang.ClassLoader.loadClass(Unknown Source)
     Could not find the main class: Scan.  Program will exit. 

Please help me. :)

When you're running java, don't put .java on the end of the class name.

It looks like you're trying to run a class named Scan.java, but there is no such class; the class is just named Scan. However you're launching your class, you need to launch just Scan, i.e.,

java Scan

not

java Scan.java

You need to specify classpath that specifies where Scan class can be found. The classpath can point to a folder of classes or a JAR file. For instance...

java -cp scan.jar Scan