java log in

package com.example.user.shishu;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    EditText editText1, editText2;
    TextView textView1, textView2, textView3;
    Button button1, button2;

    String username1 = "shishu";
    String password1 = "12345";


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

        editText1 = (EditText) findViewById(R.id.e1);
        editText2 = (EditText) findViewById(R.id.e2);
        button1 = (Button) findViewById(R.id.b1);
        button2 = (Button) findViewById(R.id.b2);


        button1.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = editText1.getText().toString();
                String password = editText2.getText().toString();
                if (username.equals(username1) && password.equals(password1)) {
                    Toast.makeText(getApplicationContext(), "Match", Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(getApplicationContext(), " Dont Match", Toast.LENGTH_LONG).show();
                }
            }
        });
    }
}