<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical">
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="45dp"
android:gravity="right|bottom"
android:text="12345678"
android:layout_weight="1"
/>
<TableLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="match_parent"
android:stretchColumns="0,1,2,3">
<TableRow>
<Button android:text="/" />
<Button android:text="x" />
<Button android:text="-" />
<Button android:text="+" />
</TableRow>
<TableRow>
<Button android:text="7" />
<Button android:text="8" />
<Button android:text="9" />
<Button android:text="<" />
</TableRow>
<TableRow>
<Button android:text="4" />
<Button android:text="5" />
<Button android:text="7" />
<Button android:text="AC" />
</TableRow>
<TableRow>
<Button android:text="1" />
<Button android:text="2" />
<Button android:text="3" />
</TableRow>
<TableRow>
<Button android:text="0" android:layout_span="2"/>
<Button android:text="." />
<Button android:text="=" />
</TableRow>
</TableLayout>
</LinearLayout>
package com.example.a04_39;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}