Create Dialog with options, using AlertDialog.Builder

package com.AndroidAlertDialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class AndroidAlertDialog extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Button buttonStartDialog = (Button)findViewById(R.id.startdialog);
        buttonStartDialog.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    StartDialog();
   }});
    }
    
    private void StartDialog(){
     AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(this);
     myAlertDialog.setTitle("My Alert Dialog");
     myAlertDialog.setMessage("It provide options for user to select");
     myAlertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
       
            // do something when the button is clicked
            public void onClick(DialogInterface arg0, int arg1) {
                Toast.makeText(getApplicationContext(), "'Yes' button clicked", Toast.LENGTH_LONG).show();
            }
        });
     myAlertDialog.setNeutralButton("Option 1", new DialogInterface.OnClickListener() {
      
            // do something when the button is clicked
            public void onClick(DialogInterface arg0, int arg1) {
                Toast.makeText(getApplicationContext(), "'Option 1' button clicked", Toast.LENGTH_LONG).show();
            }
        });
     myAlertDialog.setNegativeButton("NO", new DialogInterface.OnClickListener() {
      
            // do something when the button is clicked
            public void onClick(DialogInterface arg0, int arg1) {
                Toast.makeText(getApplicationContext(), "'No' button clicked", Toast.LENGTH_LONG).show();
            }
        });
     myAlertDialog.show();
    }
}

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