Java tutorial
//package com.java2s; //License from project: Open Source License import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.support.annotation.Nullable; public class Main { @Nullable public static BluetoothDevice getDevice(String address) { if (!hasBluetoothAdapter()) return null; return getBluetoothAdapter().getRemoteDevice(address); } public static boolean hasBluetoothAdapter() { return BluetoothAdapter.getDefaultAdapter() != null; } @Nullable public static BluetoothAdapter getBluetoothAdapter() { return BluetoothAdapter.getDefaultAdapter(); } }