currency converter

package com.example.thecurrancyconverter;

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;

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) {
                String S = editText.getText().toString();
                int dollar= Integer.parseInt(S);
                float Rupee= (float) (79.57 * dollar);
                textview.setText("The corresponding Value in Rupee is"  + Rupee);
            }
        });




    }
}