Alerts.java

public class Alerts {

    class Alert {
        byte cell_id;
        byte type;        
        Calendar start_datetime = new GregorianCalendar();
        byte duration;
        byte data1;
    }

	

CommunicatorThread.java

public static Alerts.Alert[] g_alerts=new Alerts.Alert[49];


public void TestCalender()
{
	Alerts.Alert alert_temp=  alerts.new Alert();
	SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
	
	for (i=0;i<49;i++)
    {
        g_alerts[i]= alerts.new Alert();
		g_alerts[i].start_datetime.clear();            
    }
	
	g_alerts_count=0;
    while (index<length+4)//save raw data from server
    {	
		alert_temp.start_datetime.set(2000+ mBuffer[mBufferIndex +index+2],mBuffer[mBufferIndex +index+3]-1,mBuffer[mBufferIndex +index+4],mBuffer[mBufferIndex +index+6],mBuffer[mBufferIndex +index+7],0);
	
		g_alerts[g_alerts_count].start_datetime = alert_temp.start_datetime;	
		
		strDate = sdf.format(g_alerts[g_alerts_count].start_datetime.getTime());        
		Log.d(TAG, "alert set to time:"+ strDate );
		
		//log from logcat to first row in the g_alerts array
		//alert set to time: 28-05-2017 15:30:00
		
		g_alerts_count++;
	}
	
	
}

@Override
    public void run() {
        try {
			
			TestCalender();
		
			SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
			
			for (int i=0;i<g_alerts_count;i++) {
				String strDate = sdf.format(g_alerts[i].start_datetime.getTime());
				Log.d(TAG, "alert set to time:"+ strDate );
			}
			
			//log from logcat to first row in the g_alerts array
			//alert set to time: 27-05-2017 15:30:00
			
		}
		catch
		{
		}
		}