Generating Prime Numbers: 

Source Code

public void doGet(HttpServletRequest request,

HttpServletResponse response)

throws ServletException, IOException {

int numPrimes =

ServletUtilities.getIntParameter(request,

"numPrimes", 50);

int numDigits =

ServletUtilities.getIntParameter(request,

"numDigits", 120);

// findPrimeList is synchronized

PrimeList primeList =

findPrimeList(primeListVector, numPrimes, numDigits);

if (primeList == null) {

primeList = new PrimeList(numPrimes, numDigits, true);

65

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Generating Prime Numbers: 

Source Code (Continued)

synchronized(primeListVector) {

if (primeListVector.size() >= maxPrimeLists)

primeListVector.removeElementAt(0);

primeListVector.addElement(primeList);

}

}

Vector currentPrimes = primeList.getPrimes();

int numCurrentPrimes = currentPrimes.size();

int numPrimesRemaining = (numPrimes   numCurrentPrimes);

boolean isLastResult = (numPrimesRemaining == 0);

if (!isLastResult) {

response.setHeader("Refresh", "5");

}

response.setContentType("text/html");

PrintWriter out = response.getWriter();

// Show List of Primes found ...

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