cwdoh

interface Heater {
    fun on()
    fun off()
    fun isHot() : Boolean
}

class ElectricHeater(var heating: Boolean = false) : Heater {
    override fun on() {
        println("~ ~ ~ heating ~ ~ ~")
        heating = true

cwdoh

class JobSchedulerSample {
    private static final int JOB_ID_UPDATE = 0x1000;
    
    static void setUpdateJob(Context context) {
        // 대용량 데이터를 업데이트하기 위한 적정 조건 설정
        JobInfo job =
            new JobInfo.Builder(
                // Job에 설정할 Id 값
                JOB_ID_UPDATE,
                // 조건 만족 시 UpdateDataByWiFiService가 실행

cwdoh

import android.content.Context;
import android.content.Intent;
import android.support.v4.app.JobIntentService;
import android.util.Log;
import android.widget.Toast;
import 
/**
 * Example implementation of a JobIntentService.
 */
public class UpdateJobIntentService extends JobIntentService {