MainActivity.java handlers

package com.example.saigopinarimeti.helloworld;

import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

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

        startHandler = findViewById(R.id.startHandler);

        startHandler.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                doDelay();
            }
        });


    }

    void doDelay(){
        Log.d("doDeplay","doDeplay called ...");
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                Log.d("doDeplay","doDeplay is completed ...");
            }
        },5*1000);
    }

}