Check internet connection Android Studio

checkInternetConnection.txt

    #### AndroidManifest.xml ####
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    
    
    #### MainActivity.java ####
    
    public boolean isOnline() {
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        return (cm != null ? cm.getActiveNetworkInfo() : null) != null && cm.getActiveNetworkInfo().isConnectedOrConnecting();
    }