Solved [URGENT]Config help And Banning using codes help

How can i ban someone using a code:
Something like this:

Code:

Ban(target, "You have been warned 3times!", "See ya!");

And another question about Configs:
How can i make a config say a number for example i want it to count everytime somebody uses a command and trigger an event (ban) when the counter hits 3 this needs to save thats why i wanna use config file or any other yml file

This is my full code at this moment:

Code:

package jasper;
 
import java.awt.Color;
import java.util.List;
 
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
 
public final class warnedyou extends JavaPlugin {
 
    @Override
    public void onEnable(){
        // TODO Insert logic to be performed when the plugin is enabled
   getLogger().info("Plugin Warnedyou enabled!");
    }
    @Override
    public void onDisable() {
        // TODO Insert logic to be performed when the plugin is disabled
   getLogger().info("Plugin Warnedyou disabled!");
    }
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
   Player player = (Player) sender;
   Player target = (Bukkit.getServer().getPlayer(args[0]));
        String getvalue = this.getConfig().get(target + ".warnings");
   
   if (cmd.getName().equalsIgnoreCase("warn")){ // If the player typed /warn then do the following...
   // do something...
   target.sendMessage(Color.red + "You have been warned, You now have " + getvalue + "/3 Warnings!");
   target.sendMessage(Color.red + "If you have 3 warning points you will get an ban for ever.");
   target.sendMessage(Color.red + "You can go to http://www.funnycraft.nl for more info & Rules!");
   if (getvalue = 3){
   Ban(target, "You are banned because you had 3 warnings, Check Funnycraft.nl for more info!", "See ya!");
   }
   // setting an int value
   String integerValue = getvalue + 1;
   this.getConfig().set(target + ".warnings", integerValue);
   this.saveConfig();
   return true;
   } else if (cmd.getName().equalsIgnoreCase("reload")) {
   // do something
   this.reloadConfig();
   }
   return true;
   }
}

I updated my code and can nobody help whit my ban code and this :
if (getvalue = 3){ //<- this gives error
String getvalue = this.getConfig().get(target + ".warnings"); //<- this gives error

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

When you use "=" you are defining something, if you wish to check if it is equal to something else you would use "==", but in this case you want to do (getValue.equals("3"))

Or just read it as an int instead of a string, making it
(getValue == 3)

http://wiki.bukkit.org/Configuration_API_Reference

Code:

Getting Values
 
Reading values from the configuration involves invoking one of the many getter methods. A complete list of getters can be found here. Every getter method takes a configuration path detailed above. Some of the commonly used getter methods are as follows
getBoolean(String)
getInt(String) <== this
getString(String)
getList(String)
getStringList(String)

 

Tnx for reply