Table application in android for kids

Android table application is very basic app for small children.It will help them to learn tables.It consists of simple input area where integer values can be entered up-to 32700.User just need to input the number of table and press the 'ok' button.Instantly required table will be displayed to the user.Many people might be thinking that its just a foolish app.But I have analyzed that new generation spends maximum time on smartphones.If they have a smartphone with no time wasting games and some knowledge related applications are preinstalled like table, so I think it will be more beneficial.So paste the source code given below into your project and provide your children a bright future.
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.table"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

MainActivity.java
package com.example.table; import android.os.Build; import android.support.annotation.RequiresApi; import android.support.v7.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 { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button ok=(Button)findViewById(R.id.ok); final EditText input=(EditText)findViewById(R.id.input); final TextView table=(TextView)findViewById(R.id.table); input.clearAnimation(); input.clearFocus(); ok.setOnClickListener(new View.OnClickListener() { @RequiresApi(api = Build.VERSION_CODES.KITKAT) @Override public void onClick(View v) { input.clearComposingText(); table.setText(""); int n=Integer.parseInt(input.getText().toString()); Toast.makeText(MainActivity.this, ""+n, Toast.LENGTH_SHORT).show(); for(int i=1; i<=10; i++) { table.append(n+" * "+i+" = "+n*i+"\n"); } } }); } }

activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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="com.example.table.MainActivity"> <EditText android:id="@+id/input" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignParentTop="true" android:layout_marginLeft="19dp" android:layout_marginStart="19dp" android:layout_marginTop="20dp" android:ems="8" android:inputType="number" /> <Button android:id="@+id/ok" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/input" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginRight="15dp" android:text="ok" /> <TextView android:id="@+id/table" android:text="table" android:textSize="30dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/input" android:layout_alignStart="@+id/input" android:layout_below="@+id/input" android:layout_marginTop="10dp" /> </RelativeLayout>

Output