mainactivity.java

package com.example.unitconverter;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
private Button button;
private TextView textView;
private EditText edittext;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button=findViewById(R.id.button);
        textView=findViewById(R.id.textView);
        edittext=findViewById(R.id.edittext);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(MainActivity.this, "Hello you have submitted your query", Toast.LENGTH_SHORT).show();
                String s= edittext.getText().toString();
                int kg= Integer.parseInt(s);
                double pound= 2.205*kg;
          textView.setText("The corresponding value of KG to pound is" + pound);
}       });


    }
}