zadanie z dni,godziny

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/editText01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="15pt"
        android:ems="5"
        android:inputType="number"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_margin="5pt"
        />

    <TextView
        android:id="@+id/textView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="dni"
        android:textSize="15pt"
        app:layout_constraintLeft_toRightOf="@+id/editText01"
        app:layout_constraintBottom_toBottomOf="@id/editText01"
        android:layout_margin="5pt"
        />

    <EditText
        android:id="@+id/editText02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="15pt"
        android:ems="5"
        android:inputType="number"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toBottomOf="@id/editText01"
        android:layout_margin="5pt"
        />

    <TextView
        android:id="@+id/textView02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="godziny"
        android:textSize="15pt"
        app:layout_constraintLeft_toRightOf="@+id/editText01"
        app:layout_constraintBottom_toBottomOf="@id/editText02"
        android:layout_margin="5pt"
        />

    <EditText
        android:id="@+id/editText03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="15pt"
        android:ems="5"
        android:inputType="number"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toBottomOf="@id/editText02"
        android:layout_margin="5pt"
        />

    <TextView
        android:id="@+id/textView03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="minuty"
        android:textSize="15pt"
        app:layout_constraintLeft_toRightOf="@+id/editText01"
        app:layout_constraintBottom_toBottomOf="@id/editText03"
        android:layout_margin="5pt"
        />

    <Button
        android:id="@+id/button01"
        android:layout_width="0pt"
        android:layout_height="wrap_content"
        android:text="przelicz"
        android:textSize="10pt"
        android:layout_margin="5pt"
        app:layout_constraintTop_toBottomOf="@id/editText03"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        android:onClick="calculate"
        />

    <TextView
        android:id="@+id/textView04"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="................."
        android:textSize="12pt"
        android:ems="5"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toBottomOf="@id/button01"
        android:layout_margin="5pt"
        />

    <TextView
        android:id="@+id/textView05"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="minut"
        android:textSize="15pt"
        app:layout_constraintLeft_toRightOf="@id/textView04"
        app:layout_constraintTop_toBottomOf="@id/button01"
        android:layout_margin="5pt"
        />

</androidx.constraintlayout.widget.ConstraintLayout>



***********************************************************************************


package com.example.k02;

import androidx.appcompat.app.AppCompatActivity;

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

import org.w3c.dom.Text;

public class MainActivity extends AppCompatActivity {

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

    public void calculate(View view) {
        double x=0, y=0, z=0;

        EditText dni = findViewById(R.id.editText01);
        EditText godz = findViewById(R.id.editText02);
        EditText min = findViewById(R.id.editText03);

        TextView wynik = findViewById(R.id.textView04);

        String dni1, godz1, min1;

        dni1 = dni.getText().toString();
        x = Double.parseDouble(dni1);

        godz1 = godz.getText().toString();
        y = Double.parseDouble(godz1);

        min1 = min.getText().toString();
        z = Double.parseDouble(min1);

        x=x*24*60;
        y=y*60;

        double w = x + y + z;

        wynik.setText(String.valueOf(w));

    }
}