Code hangs - don't know why!

[Hilary Reynolds]

I have defined an object(Tracker) with four variables and in a class have declared an array of this object:

Tracker track[] = new Tracker[max];

However in a for loop when I try to set the values of the variables The code hangs for no apparent reason.


for (int i = 0; i < track.length; i++){

track[i].agname = agNames[i];

track[i].priority = priority[i];

}


Would anyone have any ideas???


Hilary

[Ajay Raina]

Hi Hilary,

could you please send the entire code(How does your Tracker class look like?)


Ajay

[Hilary Reynolds]

below is the code for the Tracker. It is instantiated in an agent. I didn't supply all this code but the beginning. You

couldn't run it without the agent platform.



package IE.BROADCOM.ISYS.ASL.Hilary;


//ASL imports

import IE.BROADCOM.ISYS.ASL.agentName;



public class Tracker{

agentName agname = null;

String reply = null;

int priority = 0;

int times[] = {6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00}; //max number of hours to be dealt with



public Tracker(){

agname = null;

reply = null;

priority = 0;

}


public int findTime(Tracker[] tracker, int numAgents){

int proposeTime = 9; //earliest one would want a meeting at?

for (int i = 0; i < numAgents; i++){

for (int j = 9; j < 18; j++){

if (tracker[i].times[j] == tracker[i+1].times[j])

proposeTime = tracker[i].times[j];

}

}



return proposeTime;

}


}



agent:...........

public class PersonalAgentTwo extends BasicAgent{


private ContentParser parser = null; //instance of class to parse messages

private Schedule sched = null;

//private InformationManager infoMgr = null; //instance of class to interface with Outlook

String action = null;

String date = null;

String loc = null;

String time = null;

String list = null;

String duration = null;

String newContent = null;

String request = null;


int count = 0;

static final int maxHrs = 18; //schedule only deals with 18 hours of the day!!

final int maxAgs = 5; // number of agents listed in meeting request!

int nums = 0;

int tempTimes[] = new int[maxHrs];

int freeTimes[] = {6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00};

agentName agNames[] = new agentName[maxAgs];

int priority[] = new int[maxAgs];

String reply[] = new String[maxAgs];

int suggestTime = 9; //don't really want a meeting earlier than this unless absolutely

necessary!


//keep track of all agents requested to meeting and their replies

private Tracker track[] = new Tracker[maxAgs];


DataInputStream iStream = new DataInputStream(System.in);




public PersonalAgentTwo (agentName name, String type, String kind, IaNS ia, ACA aca){

super(name, type, kind, ia, aca);



parser = new ContentParser();

sched = new Schedule("Pa2");

//infoMgr = new OutlookManager();

System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");

System.out.println("~~~~ Personal AGENT (2) ~~~~");

System.out.println("~~~~ Personal Assistant by Hilary Reynolds ~~~~");

System.out.println("~~~~ January 1999 ~~~~");

System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");



}



public void startMessage(){

try{

System.out.println ("Enter the action for the message: \n");

action = iStream.readLine();

System.out.println ("Enter the date for this meeting: \n");

date = iStream.readLine();

System.out.println ("Enter the location for this meeting: \n");

loc = iStream.readLine();

// System.out.println("Enter the duration for this meeting: \n");

// duration = iStream.readLine();

System.out.println ("Enter the list of attendees for this meeting: \n");

list = iStream.readLine();

}

catch(IOException ioe){

System.out.println("Error inputing data: " + ioe + "\n");

}



newContent = ("(" + action + ",(" + date + ":" + loc + "))");


java.util.Vector pp = parser.parseList(list);





if (pp != null){

String number = (String) pp.elementAt(0);

nums = java.lang.Integer.parseInt(number);

agNames = (agentName[]) pp.elementAt(1);

priority = (int[]) pp.elementAt(2);


for (int i = 0; i < track.length; i++){

System.out.println("initialising tracker");

System.out.println(agNames[i].name );

track[i].agname = agNames[i];

track[i].priority = priority[i];

}


kqmlExp bMessage = initMessage();

bMessage.content = newContent;

bMessage.perfType = performatives.ASK;

System.out.println(" [ Sending message now! ] ");

broadcastMessage( agNames, bMessage);

}

else{

System.out.println("[ Error while parsing attendance list:: Try Again! ]");

//go back to the start

}

}

Maybe you could add one line to initialize the tracker object before you use it.

for (int i = 0; i < track.length; i++)
{
track[i] = new Tracker();

track[i].agname = agNames[i];
track[i].priority = priority[i];
}

Shuli