Untitled

package com.example.project;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

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

        Button button1 = (Button) findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "1");
            }
        });

        Button button2 = (Button) findViewById(R.id.button2);
        button2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "2");
            }
        });

        Button button3 = (Button) findViewById(R.id.button3);
        button3.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "3");
            }
        });

        Button button4 = (Button) findViewById(R.id.button4);
        button4.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "4");
            }
        });

        Button button5 = (Button) findViewById(R.id.button5);
        button5.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "5");
            }
        });

        Button button6 = (Button) findViewById(R.id.button6);
        button6.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "6");
            }
        });

        Button button7 = (Button) findViewById(R.id.button7);
        button7.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "7");
            }
        });

        Button button8 = (Button) findViewById(R.id.button8);
        button8.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "8");
            }
        });

        Button button9 = (Button) findViewById(R.id.button9);
        button9.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "9");
            }
        });

        Button button0 = (Button) findViewById(R.id.button0);
        button0.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d("BUTTONS", "0");
            }
        });
    }
}