My first try

import java.awt.*;

import org.dreambot.api.methods.Calculations;
import org.dreambot.api.methods.event.EventHandler;
import org.dreambot.api.methods.event.PaintEvent;
import org.dreambot.api.methods.container.impl.bank.BankLocation;
import org.dreambot.api.methods.filter.Filter;
import org.dreambot.api.methods.map.Area;
import org.dreambot.api.methods.map.Tile;
import org.dreambot.api.methods.walking.path.impl.LocalPath;
import org.dreambot.api.script.AbstractScript;
import org.dreambot.api.script.Category;
import org.dreambot.api.script.ScriptManifest;
import org.dreambot.api.utilities.impl.Condition;
import org.dreambot.api.wrappers.interactive.GameObject;
import org.dreambot.api.wrappers.items.GroundItem;

import org.dreambot.api.methods.Calculations;
import org.dreambot.api.methods.event.EventHandler;
import org.dreambot.api.methods.event.PaintEvent;
import org.dreambot.api.methods.skills.Skill;
import org.dreambot.api.methods.tabs.Tab;
import org.dreambot.api.methods.widget.Widget;
import org.dreambot.api.script.AbstractScript;
import org.dreambot.api.script.Category;
import org.dreambot.api.script.ScriptManifest;
import org.dreambot.api.utilities.impl.Condition;
import org.dreambot.api.utilities.impl.Filter;
import org.dreambot.api.wrappers.interactive.NPC;
import org.dreambot.api.wrappers.widgets.WidgetChild;


import org.dreambot.api.methods.Calculations;
import org.dreambot.api.methods.container.impl.bank.BankLocation;
import org.dreambot.api.methods.filter.Filter;
import org.dreambot.api.methods.map.Area;
import org.dreambot.api.methods.map.Tile;
import org.dreambot.api.methods.walking.path.impl.LocalPath;
import org.dreambot.api.script.AbstractScript;
import org.dreambot.api.script.Category;
import org.dreambot.api.script.ScriptManifest;
import org.dreambot.api.utilities.impl.Condition;
import org.dreambot.api.wrappers.interactive.GameObject;
import org.dreambot.api.wrappers.items.GroundItem;
import org.dreambot.api.methods.event.EventHandler;
import org.dreambot.api.methods.event.PaintEvent;





    @ScriptManifest(author="BZmake", category= Category.COMBAT, name="Slaying Cows", version=0.1, description="Slays cows and banks hides")
    public class BZcows extends AbstractScript{



     @Override
        public int onLoop() throws InterruptedException {
            getClient().disableIdleMouse();
            // Click away level up messages
            getDialogues().clickContinue();


     }

     // Area's //
     private final Area BANK_AREA = new Area();
     private final Area COW_AREA = new Area ();

     //Tiles
     private final Tile IN_FRONT_OF_GATE = new Tile ();// tile in front of gate




     // Path //
     private final localPath pathFromBank = new localPath();

     public void onStart(){
         pathFromBank = new localPath(getClient().getMethodContext());
            log("Lets Start!"); //Use log to print to the console
        }


     //States
     private State state;

     //Declaring States
     private enum state() {
         BANK,
         WALK_TO_BANK,
         WALK_TO_COWS,
         ATTACK,
         PICK_UP,
         IDLE,
         DIALOGUE
     }

     //state currently in
     private State getState() {
         //if inv full, bank
         if(getInventory().isFull()){
             if(BANK_AREA.contains(getLocalPlayer())){
                 return State.BANK;

             }
             else{
                 return State.WALK_TO_BANK
             }

         }
         else{
             //if not full, attack and collect
             if(COW_AREA.contains(getLocalPlayer())){
                 return State.ATTACK;

                 if (getLocalPlayer().myPlayer().isInCombat()) {
                     NPC cow = getNpcs().getClosest(Cow);

                    //checks if cow isnt null and cow is on screen

                     if(cow!=null && cow.isOnScreen())

                     {

                    cow.interact("Attack");

      }

             }
             else{
                 return State.PICK_UP;
             }
             else{
                 return State.WALK_TO_COWS;
             }
         }

     }


     public void onPaint(Graphics g){
            g.setColor(new Color(247, 148, 230));
            g.drawString("DreamBot is awesome!", 100, 100);
            g.drawString("IsInCombat: " + getLocalPlayer().isInCombat(), 100, 120);
        }
}