different ways to implement on click android

package com.example.teachingdemoapp;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {


    Button loginButton;

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

        loginButton = findViewById(R.id.login);

        // 1st method
//        loginButton.setOnClickListener(new View.OnClickListener() {
//            @Override
//            public void onClick(View view) {
//                Toast.makeText(MainActivity.this, "Logging please wait ... ", Toast.LENGTH_SHORT).show();
//
//            }
//        });

        // 3rd way
       //loginButton.setOnClickListener(this);

        // 4th way
        findViewById(R.id.login).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(MainActivity.this, "Logging please wait ... 4th way ", Toast.LENGTH_SHORT).show();
            }
        });
    }


    // 2nd way
//    public void doLoginNow(View view) {
//        Toast.makeText(MainActivity.this, "Logging please wait ... ", Toast.LENGTH_SHORT).show();
//
//    }

    // 3rd way
    @Override
    public void onClick(View view) {
        if(view.getId() == R.id.login){
            Toast.makeText(MainActivity.this, "Logging please wait ... ", Toast.LENGTH_SHORT).show();
        }
    }
}