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POtrouble with StringTokenizer
 

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  1. POtrouble with StringTokenizer
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    <p>I'm getting the following error message and I can't seem to figure out the problem. Would really appreciate any help. The error message reads as:-</p> <p>BaseStaInstance.java:68: cannot find symbol </p> <p>symbol : constructor StringTokenizer(java.lang.Object,java.lang.String)</p> <p>location: class java.util.StringTokenizer st = new StringTokenizer(buf,",");</p> <pre><code> ^ </code></pre> <p>Here, BaseStaInstance is my main public class.</p> <p>The class that implements this StringTokenizer is as follows:-</p> <p>class ServerConnect extends Thread {</p> <pre><code>Socket skt; int iProcessId, iInProcessId; int iOwnTimeStamp, iInTimeStamp; ServerConnect scnt = null; ObjectOutputStream myOutput; ObjectInputStream myInput; ServerConnect(){} ServerConnect(Socket connection, int iProcessNo) { this.skt = connection; this.iProcessId = iProcessNo; } public void run() { try { //initialize the object "scnt" using the parameterized constructor ServerConnect scnt = new ServerConnect(skt, iProcessId); myInput = new ObjectInputStream(skt.getInputStream()); while(true) { try{ iOwnTimeStamp = Global.iTimeStamp; Object buf = myInput.readObject(); //if we got input, print it out and write a message back to the remote client... if(buf != null){ scnt.replyChoice(buf); } }catch(ClassNotFoundException e) { e.printStackTrace(); } } } catch(IOException e) { e.printStackTrace(); } } void replyChoice(Object buf){ try{ String sDeferReply = ""; myOutput = new ObjectOutputStream(skt.getOutputStream()); //the place where the basestation reads the request from the other basestation System.out.println("Server read:[ "+buf+" ]"); //extract out the process id and the timestamp from the incoming request buf = buf.toString(); ***StringTokenizer st = new StringTokenizer(buf,",");*** //skip the word request st.nextToken(); iInProcessId = Integer.parseInt(st.nextToken()); iInTimeStamp = Integer.parseInt(st.nextToken()); //check request is made //there is a possibility of entering the else loop only on the very first iteration //the control flows into the if loop even if one request has been made if(iOwnTimeStamp != 0){ //if the incoming request has a larger timestamp (logical clock value, process id) than the current process, we defer the reply if(iOwnTimeStamp &lt; iInTimeStamp || iProcessId &lt; iInProcessId){ sDeferReply="iInTimeStamp"+","+"iInProcessId"; Global.v.addElement(new String(sDeferReply)); } //incoming request has a smaller timestamp than the basestation request itself else{ myOutput.writeObject("Reply"); myOutput.flush(); } } //if the current process is in the critical section then we defer replies else if(Global.iCriticalSection==1){ sDeferReply="iInTimeStamp"+","+"iInProcessId"; Global.v.addElement(new String(sDeferReply)); } //start of execution of the thread, there is a possibility that the basestation hasn't issued a request else{ myOutput.writeObject("Reply"); myOutput.flush(); } }catch(IOException e){ e.printStackTrace(); } } </code></pre> <p>} </p> <p>The part that implements the StringTokenizer function has *** surrounding it.</p> <p>Thanks in advance to anyone who might be able to help me out.</p>
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