Android Spinner with Hashmap

package com.example.androidtest;

import java.util.HashMap;

import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;
import android.app.Activity;

public class MainActivity extends Activity {
    private String[]            arrMuppetNames  = {"Kermit","Gonzo","Fuzzy","Animal"};
    HashMap<String, Integer>    hashMuppets     = new HashMap<String, Integer>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Setup spinner with muppets
        setSpinnerContent(arrMuppetNames);
        //setup hashmap
        buildHashMap(arrMuppetNames);

        //add spinner listener
        Spinner my_spinner = (Spinner) findViewById(R.id.muppets_spinner);
        my_spinner.setOnItemSelectedListener(spinnerListener);
    }


    private void buildHashMap(String arrMuppets[]){
        int intVal              = 0;
        String strValue         = "";

        //loop through array and create key value pair to put into hashmap
        for(int i=0; i < arrMuppets.length; i++){
            strValue            = arrMuppets[i].toString();

            if(strValue == "Kermit"){
                intVal  = 1;
            }else if(strValue == "Gonzo"){
                intVal  = 2;
            }else if(strValue == "Fuzzy"){
                intVal  = 3;
            }else if(strValue == "Animal"){
                intVal  = 4;
            }else{
                intVal  = 0;
            }

            //put value and key into hashmap
            hashMuppets.put(strValue,intVal);
        }
    }


    private void setSpinnerContent(String arrMuppets[]){
        Spinner spinner         = (Spinner) findViewById(R.id.muppets_spinner);
        String arrNewArray[]    = new String[arrMuppets.length + 1];

        //Add please select to spinner
        arrNewArray[0]  = this.getString(R.string.select_please);
        for(int i=0; i < arrMuppets.length; i++){
            arrNewArray[i+1]    = arrMuppets[i];
        }

        //Application of the Array to the Spinner
        ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(
                this,
                android.R.layout.simple_spinner_item,
                arrNewArray
        );
        spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(spinnerArrayAdapter);
    }


    private Spinner.OnItemSelectedListener spinnerListener = new Spinner.OnItemSelectedListener(){
        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
            Spinner     my_spinner  = (Spinner) findViewById(R.id.muppets_spinner);

            //arg 3 is index, if 0 it means they clicked "--please select--"
            if(arg3 != 0){
                //get selected content
                String  strName     = my_spinner.getSelectedItem().toString();
                //use hasmap to translate that into a corresponding id.
                int     intCatID    = hashMuppets.get(strName);

                Toast.makeText(getApplicationContext(), String.valueOf(intCatID), Toast.LENGTH_SHORT).show();
            }
        }
        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            //this is what happens if we select nothing.
            return;
        }
    };


}