List of usage examples for java.lang ArithmeticException getMessage
public String getMessage()
From source file:MainClass.java
public static void main(String[] args) { int[] array = new int[] { 1, 0, 2 }; int index = 0; try {/* w w w .j a v a 2 s. c o m*/ System.out.println("\nFirst try block in divide() entered"); array[index + 2] = array[index] / array[index + 1]; System.out.println("Code at end of first try block in divide()"); } catch (ArithmeticException e) { System.err.println("Arithmetic exception caught in divide()\n" + "\nMessage in exception object:\n\t" + e.getMessage()); System.err.println("\nStack trace output:\n"); e.printStackTrace(); System.err.println("\nEnd of stack trace output\n"); } catch (ArrayIndexOutOfBoundsException e) { System.err.println("Index-out-of-bounds exception caught in divide()\n" + "\nMessage in exception object:\n\t" + e.getMessage()); System.err.println("\nStack trace output:\n"); e.printStackTrace(); System.out.println("\nEnd of stack trace output\n"); } finally { System.err.println("finally clause in divide()"); } System.out.println("Executing code after try block in divide()"); }
From source file:com.aegiswallet.utils.BasicUtils.java
public static BigInteger toNanoCoins(final String value, final int shift) { try {// w w w.j a v a 2 s .c om final BigInteger nanoCoins = new BigDecimal(value).movePointRight(8 - shift).toBigIntegerExact(); if (nanoCoins.signum() < 0) throw new IllegalArgumentException("negative amount: " + value); if (nanoCoins.compareTo(NetworkParameters.MAX_MONEY) > 0) Log.e(TAG, "AMOUNT TOO LARGE"); return nanoCoins; } catch (ArithmeticException e) { Log.d(TAG, e.getMessage()); return BigInteger.ZERO; } }
From source file:ja.ohac.wallet.ExchangeRatesProvider.java
private static Map<String, ExchangeRate> requestExchangeRates(final URL url, final String userAgent, final String source, final String... fields) { final long start = System.currentTimeMillis(); HttpURLConnection connection = null; Reader reader = null;// ww w . j ava2 s .c o m try { connection = (HttpURLConnection) url.openConnection(); connection.setInstanceFollowRedirects(false); connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS); connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS); connection.addRequestProperty("User-Agent", userAgent); connection.addRequestProperty("Accept-Encoding", "gzip"); connection.connect(); final int responseCode = connection.getResponseCode(); if (responseCode == HttpURLConnection.HTTP_OK) { final String contentEncoding = connection.getContentEncoding(); InputStream is = new BufferedInputStream(connection.getInputStream(), 1024); if ("gzip".equalsIgnoreCase(contentEncoding)) is = new GZIPInputStream(is); reader = new InputStreamReader(is, Charsets.UTF_8); final StringBuilder content = new StringBuilder(); final long length = Io.copy(reader, content); final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>(); final JSONObject head = new JSONObject(content.toString()); for (final Iterator<String> i = head.keys(); i.hasNext();) { final String currencyCode = i.next(); if (!"timestamp".equals(currencyCode)) { final JSONObject o = head.getJSONObject(currencyCode); for (final String field : fields) { final String rateStr = o.optString(field, null); if (rateStr != null) { try { final BigInteger rate = GenericUtils.parseCoin(rateStr, 0); if (rate.signum() > 0) { rates.put(currencyCode, new ExchangeRate(currencyCode, rate, source)); break; } } catch (final ArithmeticException x) { log.warn("problem fetching {} exchange rate from {} ({}): {}", currencyCode, url, contentEncoding, x.getMessage()); } } } } } log.info("fetched exchange rates from {} ({}), {} chars, took {} ms", url, contentEncoding, length, System.currentTimeMillis() - start); return rates; } else { log.warn("http status {} when fetching exchange rates from {}", responseCode, url); } } catch (final Exception x) { log.warn("problem fetching exchange rates from " + url, x); } finally { if (reader != null) { try { reader.close(); } catch (final IOException x) { // swallow } } if (connection != null) connection.disconnect(); } return null; }
From source file:com.dopecoin.wallet.ExchangeRatesProvider.java
private static Map<String, ExchangeRate> requestExchangeRates(final URL url, float leafBtcConversion, final String userAgent, final String... fields) { final long start = System.currentTimeMillis(); HttpURLConnection connection = null; Reader reader = null;//from w w w .ja v a2s . c o m try { connection = (HttpURLConnection) url.openConnection(); connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS); connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS); connection.addRequestProperty("User-Agent", userAgent); connection.connect(); final int responseCode = connection.getResponseCode(); if (responseCode == HttpURLConnection.HTTP_OK) { reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024), Constants.UTF_8); final StringBuilder content = new StringBuilder(); Io.copy(reader, content); final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>(); final JSONObject head = new JSONObject(content.toString()); for (final Iterator<String> i = head.keys(); i.hasNext();) { final String currencyCode = i.next(); if (!"timestamp".equals(currencyCode)) { final JSONObject o = head.getJSONObject(currencyCode); for (final String field : fields) { final String rate = o.optString(field, null); if (rate != null) { try { BigDecimal btcRate = new BigDecimal(GenericUtils.toNanoCoins(rate, 0)); BigInteger leafRate = btcRate.multiply(BigDecimal.valueOf(leafBtcConversion)) .toBigInteger(); if (leafRate.signum() > 0) { rates.put(currencyCode, new ExchangeRate(currencyCode, leafRate, url.getHost())); break; } } catch (final ArithmeticException x) { log.warn("problem fetching {} exchange rate from {}: {}", new Object[] { currencyCode, url, x.getMessage() }); } } } } } log.info("fetched exchange rates from {}, took {} ms", url, (System.currentTimeMillis() - start)); return rates; } else { log.warn("http status {} when fetching {}", responseCode, url); } } catch (final Exception x) { log.warn("problem fetching exchange rates from " + url, x); } finally { if (reader != null) { try { reader.close(); } catch (final IOException x) { // swallow } } if (connection != null) connection.disconnect(); } return null; }
From source file:de.jdellay.wallet.ExchangeRatesProvider.java
private static Map<String, ExchangeRate> requestExchangeRates(final URL url, float ccnBtcConversion, final String userAgent, final String source, final String... fields) { final long start = System.currentTimeMillis(); HttpURLConnection connection = null; Reader reader = null;//from www. j a v a 2 s . co m try { connection = (HttpURLConnection) url.openConnection(); connection.setInstanceFollowRedirects(false); connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS); connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS); connection.addRequestProperty("User-Agent", userAgent); connection.addRequestProperty("Accept-Encoding", "gzip"); connection.connect(); final int responseCode = connection.getResponseCode(); if (responseCode == HttpURLConnection.HTTP_OK) { final String contentEncoding = connection.getContentEncoding(); InputStream is = new BufferedInputStream(connection.getInputStream(), 1024); if ("gzip".equalsIgnoreCase(contentEncoding)) is = new GZIPInputStream(is); reader = new InputStreamReader(is, Constants.UTF_8); final StringBuilder content = new StringBuilder(); final long length = Io.copy(reader, content); final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>(); final JSONObject head = new JSONObject(content.toString()); for (final Iterator<String> i = head.keys(); i.hasNext();) { final String currencyCode = i.next(); if (!"timestamp".equals(currencyCode)) { final JSONObject o = head.getJSONObject(currencyCode); for (final String field : fields) { final String rate = o.optString(field, null); if (rate != null) { try { BigDecimal btcRate = new BigDecimal(GenericUtils.toNanoCoins(rate, 0)); BigInteger ccnRate = btcRate.multiply(BigDecimal.valueOf(ccnBtcConversion)) .toBigInteger(); if (ccnRate.signum() > 0) { rates.put(currencyCode, new ExchangeRate(currencyCode, ccnRate, source)); break; } } catch (final ArithmeticException x) { log.warn("problem fetching {} exchange rate from {} ({}): {}", currencyCode, url, contentEncoding, x.getMessage()); } } } } } log.info("fetched exchange rates from {} ({}), {} chars, took {} ms", url, contentEncoding, length, System.currentTimeMillis() - start); return rates; } else { log.warn("http status {} when fetching {}", responseCode, url); } } catch (final Exception x) { log.warn("problem fetching exchange rates from " + url, x); } finally { if (reader != null) { try { reader.close(); } catch (final IOException x) { // swallow } } if (connection != null) connection.disconnect(); } return null; }
From source file:com.cannabiscoin.wallet.ExchangeRatesProvider.java
private static Map<String, ExchangeRate> requestExchangeRates(final URL url, final String userAgent, final String... fields) { final long start = System.currentTimeMillis(); HttpURLConnection connection = null; Reader reader = null;//w ww. jav a 2 s .com try { Double btcRate = 0.0; boolean cryptsyValue = true; Object result = getCoinValueBTC(); if (result == null) { result = getCoinValueBTC_BTER(); cryptsyValue = false; if (result == null) return null; } btcRate = (Double) result; connection = (HttpURLConnection) url.openConnection(); connection.setInstanceFollowRedirects(false); connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS); connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS); connection.addRequestProperty("User-Agent", userAgent); connection.connect(); final int responseCode = connection.getResponseCode(); if (responseCode == HttpURLConnection.HTTP_OK) { reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024), Constants.UTF_8); final StringBuilder content = new StringBuilder(); Io.copy(reader, content); final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>(); final JSONObject head = new JSONObject(content.toString()); for (final Iterator<String> i = head.keys(); i.hasNext();) { final String currencyCode = i.next(); if (!"timestamp".equals(currencyCode)) { final JSONObject o = head.getJSONObject(currencyCode); for (final String field : fields) { String rateStr = o.optString(field, null); if (rateStr != null) { try { double rateForBTC = Double.parseDouble(rateStr); rateStr = String.format("%.8f", rateForBTC * btcRate).replace(",", "."); final BigInteger rate = GenericUtils.toNanoCoins(rateStr, 0); if (rate.signum() > 0) { rates.put(currencyCode, new ExchangeRate(currencyCode, rate, url.getHost())); break; } } catch (final ArithmeticException x) { log.warn("problem fetching {} exchange rate from {}: {}", new Object[] { currencyCode, url, x.getMessage() }); } } } } } log.info("fetched exchange rates from {}, took {} ms", url, (System.currentTimeMillis() - start)); //Add Bitcoin information if (rates.size() == 0) { int i = 0; i++; } else { rates.put(CoinDefinition.cryptsyMarketCurrency, new ExchangeRate(CoinDefinition.cryptsyMarketCurrency, GenericUtils.toNanoCoins(String.format("%.8f", btcRate).replace(",", "."), 0), cryptsyValue ? "pubapi.cryptsy.com" : "data.bter.com")); rates.put("m" + CoinDefinition.cryptsyMarketCurrency, new ExchangeRate("m" + CoinDefinition.cryptsyMarketCurrency, GenericUtils.toNanoCoins( String.format("%.5f", btcRate * 1000).replace(",", "."), 0), cryptsyValue ? "pubapi.cryptsy.com" : "data.bter.com")); } return rates; } else { log.warn("http status {} when fetching {}", responseCode, url); } } catch (final Exception x) { log.warn("problem fetching exchange rates from " + url, x); } finally { if (reader != null) { try { reader.close(); } catch (final IOException x) { // swallow } } if (connection != null) connection.disconnect(); } return null; }
From source file:com.espertech.esper.epl.agg.BigDecimalAvgAggregator.java
public Object getValue() { if (numDataPoints == 0) { return null; }//w w w . j a v a 2 s .c o m try { return sum.divide(new BigDecimal(numDataPoints)); } catch (ArithmeticException ex) { log.error("Error computing avg aggregation result: " + ex.getMessage(), ex); return new BigDecimal(0); } }
From source file:com.espertech.esper.epl.agg.aggregator.AggregatorAvgBigDecimal.java
public Object getValue() { if (numDataPoints == 0) { return null; }/*from w w w . j ava2 s .com*/ try { if (optionalMathContext == null) { return sum.divide(new BigDecimal(numDataPoints)); } return sum.divide(new BigDecimal(numDataPoints), optionalMathContext); } catch (ArithmeticException ex) { log.error("Error computing avg aggregation result: " + ex.getMessage(), ex); return new BigDecimal(0); } }
From source file:eu.cloudwave.wp5.feedbackhandler.aggregations.strategies.RequestAggregationStrategyImpl.java
/** * {@inheritDoc}//from w w w. j av a 2s .com */ @Override public RequestAggregationValues aggregate(RequestCollector requests) { double expectedCount = getExpectedNumberOfMeasurementValueGroups(); /* * Group by aggregation interval and create summary statistics with min, avg, max and count */ Collection<Long> groupedByAggregationInterval = requests.getReqTimestamps().stream() .collect(Collectors.groupingBy( timestamp -> DateUtils.round(new Date(timestamp), timestampAggregation), Collectors.counting())) .values(); int calculatedCount = groupedByAggregationInterval.size(); try { if (calculatedCount != 0) { // use integer summaryStatistics to get min, avg, max IntSummaryStatistics stats = groupedByAggregationInterval.stream().mapToInt(p -> toInt(p)) .summaryStatistics(); // no time range selected, just return int summary if (expectedCount == 0) { return new RequestAggregationValuesImpl(stats.getMin(), stats.getMax(), stats.getAverage(), stats.getSum(), stats.getCount()); } else { // if calculated count != expected count --> adjust minimum, average and count value if (Double.compare(calculatedCount, expectedCount) != 0) { double newAverage = (double) (stats.getSum() / expectedCount); return new RequestAggregationValuesImpl(0, stats.getMax(), newAverage, stats.getSum(), (int) expectedCount); } else { return new RequestAggregationValuesImpl(stats.getMin(), stats.getMax(), stats.getAverage(), stats.getSum(), (int) expectedCount); } } } else { return new RequestAggregationValuesImpl(0, 0, 0, 0, 0); } } catch (ArithmeticException e) { System.out.println(e.getMessage()); return new RequestAggregationValuesImpl(0, 0, 0, 0, 0); } }
From source file:com.dotosoft.dot4command.config.xml.XmlConfigParserTestCase.java
@Test public void testExecute2c() throws Exception { try {//from w w w .ja v a 2 s .co m catalog.getCommand("Execute2c").execute(context); } catch (ArithmeticException e) { assertEquals("Correct exception id", "3", e.getMessage()); } assertThat(context, hasLog("1/2/3")); }