how to click programmatically on buttons on firefox with selenium with java

[fififififi]

I have to click on buttons and I want to do that with a program.
This is my code so far.

package javaapplication102;

import java.io.IOException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class JavaApplication102 {

    public static void main(String[] args) throws IOException {

        WebDriver driver = new FirefoxDriver();
        driver.get("http://google.com");

    }

}

and this is the errore I get

run:
Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/Function
at javaapplication102.JavaApplication102.main(JavaApplication102.java:11)
Caused by: java.lang.ClassNotFoundException: com.google.common.base.Function
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more


what did I do wrong?

[Norm]

Caused by: java.lang.ClassNotFoundException: com.google.common.base.Function

Where is the definition for the class named in the error message? Its definition needs to be on the classpath for the JVM.

[AmineRullan]

Where is the definition for the class named in the error message? Its definition needs to be on the classpath for the JVM.

if dont have that, then?

[Norm]

Go to the website that supports the org.openqa.selenium package and ask there.

[AmineRullan]

Go to the website that supports the org.openqa.selenium package and ask there.

Ok.. Thanks