List of usage examples for java.lang String charAt
public char charAt(int index)
From source file:StringDemo2.java
public static void main(String args[]) { String strOb1 = "First String"; String strOb2 = "Second String"; String strOb3 = strOb1;//from w ww .ja va 2s . co m System.out.println("Length of strOb1: " + strOb1.length()); System.out.println("Char at index 3 in strOb1: " + strOb1.charAt(3)); if (strOb1.equals(strOb2)) System.out.println("strOb1 == strOb2"); else System.out.println("strOb1 != strOb2"); if (strOb1.equals(strOb3)) System.out.println("strOb1 == strOb3"); else System.out.println("strOb1 != strOb3"); }
From source file:com.daoke.mobileserver.test.TestHttps.java
public static void main(String args[]) { /*//from w ww. java2 s . c o m AtomicInteger a = new AtomicInteger(); a.getAndIncrement();*/ String str = "version,ordertype,username,outerno,companyno,insuredperson,plcstartdate,plcenddate,licenseno,nolicenseflag,ownername,owneridno,ownercerttype,ownercertno,citycode,cardno,firstregisterdate,vehiclemodelname,vehicleid,vehicleframeno,engineno,vehicleinvoiceno,vehicleinvoicedate,runcardcertificatedate,forcebegindate,bizbegindate,taxvehicletype,fueltype,specialcarflag,specialcardate,persontaxcode,taxticketno,taxtickettype,taxbureauname,settledaddress,vehicleseats,averagemile,trafficviolation,bizquestion,bizanswer,forcequestion,forceanswer,vehiclecode,vehiclecodename,sessionid,trafficinsurance,traveltax,remark1,remark2,remark3,remark4,remark5,remark6,remark7,remark8,remark9,remark10,remark11,remark12,remark13,remark14,remark15,step,linkInfo_name,linkInfo_mobile,linkInfo_address,linkInfo_invoice,linkInfo_zipcode,linkInfo_email,linkInfo_paytype,linkInfo_realpaymode,insurInfo_name,insurInfo_certtype,insurInfo_certno,insurInfo_sex,insurInfo_birth,insurInfo_email,aplInfo_name,aplInfo_certtype,aplInfo_certno,aplInfo_sex,aplInfo_birth,aplInfo_email,businesspremium,forcepremium,vehicletaxamount,realpremium,totalremium,configbeforejudge"; String[] strs = str.split(","); for (String str1 : strs) { String str2 = str1.replace(str1.charAt(0), (char) (str1.charAt(0) - 32)); System.out.print("ejsinoFormModel.get" + str2 + "(),"); } /* Date a = new Date(123); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); sdf.format(a); System.out.println(a.getTime()); System.out.println( sdf.format(a));*/ /* TestHttps test = new TestHttps(); try { String resp = test.doPost("https://192.168.11.93:1500/lua",null,DEFAULT_CHARSET,2000,1000); System.out.println(resp); } catch (Exception e) { e.printStackTrace(); }*/ }
From source file:example.Publisher.java
public static void main(String[] args) throws Exception { String user = env("ACTIVEMQ_USER", "admin"); String password = env("ACTIVEMQ_PASSWORD", "password"); String host = env("ACTIVEMQ_HOST", "localhost"); int port = Integer.parseInt(env("ACTIVEMQ_PORT", "1883")); final String destination = arg(args, 0, "/topic/event"); int messages = 10000; int size = 256; String DATA = "abcdefghijklmnopqrstuvwxyz"; String body = ""; for (int i = 0; i < size; i++) { body += DATA.charAt(i % DATA.length()); }// ww w . j a va 2s. c o m Buffer msg = new AsciiBuffer(body); MQTT mqtt = new MQTT(); mqtt.setHost(host, port); mqtt.setUserName(user); mqtt.setPassword(password); FutureConnection connection = mqtt.futureConnection(); connection.connect().await(); final LinkedList<Future<Void>> queue = new LinkedList<Future<Void>>(); UTF8Buffer topic = new UTF8Buffer(destination); for (int i = 1; i <= messages; i++) { // Send the publish without waiting for it to complete. This allows us // to send multiple message without blocking.. queue.add(connection.publish(topic, msg, QoS.AT_LEAST_ONCE, false)); // Eventually we start waiting for old publish futures to complete // so that we don't create a large in memory buffer of outgoing message.s if (queue.size() >= 1000) { queue.removeFirst().await(); } if (i % 1000 == 0) { System.out.println(String.format("Sent %d messages.", i)); } } queue.add(connection.publish(topic, new AsciiBuffer("SHUTDOWN"), QoS.AT_LEAST_ONCE, false)); while (!queue.isEmpty()) { queue.removeFirst().await(); } connection.disconnect().await(); System.exit(0); }
From source file:Main.java
public static void main(String[] args) throws Exception { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd-MM-yyyy"); String trouble = "18?11?2003"; String goodOne = "18-11-2003"; Date date = simpleDateFormat.parse(goodOne); System.out.println(date);//w w w . ja va 2s . c o m date = simpleDateFormat.parse(trouble); System.out.println(date); System.out.println(String.format("\\u%04x", (int) trouble.charAt(2))); System.out.println(String.format("\\u%04x", (int) goodOne.charAt(2))); }
From source file:SyntaxColoring.java
public static void main(String[] args) { final Display display = new Display(); final Shell shell = new Shell(display); final StyledText styledText = new StyledText(shell, SWT.V_SCROLL | SWT.BORDER); final String PUNCTUATION = "(){}"; styledText.addExtendedModifyListener(new ExtendedModifyListener() { public void modifyText(ExtendedModifyEvent event) { int end = event.start + event.length - 1; if (event.start <= end) { String text = styledText.getText(event.start, end); java.util.List ranges = new java.util.ArrayList(); for (int i = 0, n = text.length(); i < n; i++) { if (PUNCTUATION.indexOf(text.charAt(i)) > -1) { ranges.add(new StyleRange(event.start + i, 1, display.getSystemColor(SWT.COLOR_BLUE), null, SWT.BOLD)); }//from ww w . j ava 2 s. co m } if (!ranges.isEmpty()) { styledText.replaceStyleRanges(event.start, event.length, (StyleRange[]) ranges.toArray(new StyleRange[0])); } } } }); styledText.setBounds(10, 10, 500, 100); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } display.dispose(); }
From source file:Main.java
public static void main(String[] args) { String palindrome = "Dot saw I was Tod"; int len = palindrome.length(); char[] tempCharArray = new char[len]; char[] charArray = new char[len]; // put original string in an array of chars for (int i = 0; i < len; i++) { tempCharArray[i] = palindrome.charAt(i); }/*from www . j av a 2s. c o m*/ // reverse array of chars for (int j = 0; j < len; j++) { charArray[j] = tempCharArray[len - 1 - j]; } String reversePalindrome = new String(charArray); System.out.println(reversePalindrome); }
From source file:ISMAGS.CommandLineInterface.java
public static void main(String[] args) throws IOException { String folder = null, files = null, motifspec = null, output = null; Options opts = new Options(); opts.addOption("folder", true, "Folder name"); opts.addOption("linkfiles", true, "Link files seperated by spaces (format: linktype[char] directed[d/u] filename)"); opts.addOption("motif", true, "Motif description by two strings (format: linktypes)"); opts.addOption("output", true, "Output file name"); CommandLineParser parser = new PosixParser(); try {//from www. j av a2s.co m CommandLine cmd = parser.parse(opts, args); if (cmd.hasOption("folder")) { folder = cmd.getOptionValue("folder"); } if (cmd.hasOption("linkfiles")) { files = cmd.getOptionValue("linkfiles"); } if (cmd.hasOption("motif")) { motifspec = cmd.getOptionValue("motif"); } if (cmd.hasOption("output")) { output = cmd.getOptionValue("output"); } } catch (ParseException e) { Die("Error: Parsing error"); } if (print) { printBanner(folder, files, motifspec, output); } if (folder == null || files == null || motifspec == null || output == null) { Die("Error: not all options are provided"); } else { ArrayList<String> linkfiles = new ArrayList<String>(); ArrayList<String> linkTypes = new ArrayList<String>(); ArrayList<String> sourcenetworks = new ArrayList<String>(); ArrayList<String> destinationnetworks = new ArrayList<String>(); ArrayList<Boolean> directed = new ArrayList<Boolean>(); StringTokenizer st = new StringTokenizer(files, " "); while (st.hasMoreTokens()) { linkTypes.add(st.nextToken()); directed.add(st.nextToken().equals("d")); sourcenetworks.add(st.nextToken()); destinationnetworks.add(st.nextToken()); linkfiles.add(folder + st.nextToken()); } ArrayList<LinkType> allLinkTypes = new ArrayList<LinkType>(); HashMap<Character, LinkType> typeTranslation = new HashMap<Character, LinkType>(); for (int i = 0; i < linkTypes.size(); i++) { String n = linkTypes.get(i); char nn = n.charAt(0); LinkType t = typeTranslation.get(nn); if (t == null) { t = new LinkType(directed.get(i), n, i, nn, sourcenetworks.get(i), destinationnetworks.get(i)); } allLinkTypes.add(t); typeTranslation.put(nn, t); } if (print) { System.out.println("Reading network.."); } Network network = Network.readNetworkFromFiles(linkfiles, allLinkTypes); Motif motif = getMotif(motifspec, typeTranslation); if (print) { System.out.println("Starting the search.."); } MotifFinder mf = new MotifFinder(network); long tijd = System.nanoTime(); Set<MotifInstance> motifs = mf.findMotif(motif, false); tijd = System.nanoTime() - tijd; if (print) { System.out.println("Completed search in " + tijd / 1000000 + " milliseconds"); } if (print) { System.out.println("Found " + motifs.size() + " instances of " + motifspec + " motif"); } if (print) { System.out.println("Writing instances to file: " + output); } printMotifs(motifs, output); if (print) { System.out.println("Done."); } // Set<MotifInstance> motifs=null; // MotifFinder mf=null; // System.out.println("Starting the search.."); // long tstart = System.nanoTime(); // for (int i = 0; i < it; i++) { // // mf = new MotifFinder(network, allLinkTypes, true); // motifs = mf.findMotif(motif); // } // // long tend = System.nanoTime(); // double time_in_ms = (tend - tstart) / 1000000.0; // System.out.println("Found " + mf.totalFound + " motifs, " + time_in_ms + " ms"); //// System.out.println("Evaluated " + mf.totalNrMappedNodes+ " search nodes"); //// System.out.println("Found " + motifs.size() + " motifs, " + time_in_ms + " ms"); // printMotifs(motifs, output); } }
From source file:Main.java
public static void main(String args[]) { String s = "java2s.com"; int l;/*from w w w.j a v a 2s . co m*/ l = s.length(); for (int i = 0; i < l; i++) { int padding = s.length() - i; if (padding > 0) { System.out.printf("%" + padding + "s", " "); } for (int j = 0; j < i; j++) { System.out.printf("%c ", s.charAt(j)); } System.out.printf("%c\n", s.charAt(i)); } }
From source file:mlbench.pagerank.PagerankMerge.java
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void main(String[] args) throws IOException, InterruptedException {
try {/*www .ja va 2 s . c o m*/
parseArgs(args);
HashMap<String, String> conf = new HashMap<String, String>();
initConf(conf);
MPI_D.Init(args, MPI_D.Mode.Common, conf);
JobConf jobConf = new JobConf(confPath);
if (MPI_D.COMM_BIPARTITE_O != null) {
// O communicator
int rank = MPI_D.Comm_rank(MPI_D.COMM_BIPARTITE_O);
int size = MPI_D.Comm_size(MPI_D.COMM_BIPARTITE_O);
if (rank == 0) {
LOG.info(PagerankMerge.class.getSimpleName() + " O start.");
}
FileSplit[] inputs = DataMPIUtil.HDFSDataLocalLocator.getTaskInputs(MPI_D.COMM_BIPARTITE_O, jobConf,
inDir, rank);
for (int i = 0; i < inputs.length; i++) {
FileSplit fsplit = inputs[i];
LineRecordReader kvrr = new LineRecordReader(jobConf, fsplit);
LongWritable key = kvrr.createKey();
Text value = kvrr.createValue();
{
while (kvrr.next(key, value)) {
String line_text = value.toString();
final String[] line = line_text.split("\t");
if (line.length >= 2) {
MPI_D.Send(new IntWritable(Integer.parseInt(line[0])), new Text(line[1]));
}
}
}
}
} else if (MPI_D.COMM_BIPARTITE_A != null) {
// A communicator
int rank = MPI_D.Comm_rank(MPI_D.COMM_BIPARTITE_A);
if (rank == 0) {
LOG.info(PagerankMerge.class.getSimpleName() + " A start.");
}
HadoopWriter<IntWritable, Text> outrw = HadoopIOUtil.getNewWriter(jobConf, outDir,
IntWritable.class, Text.class, TextOutputFormat.class, null, rank, MPI_D.COMM_BIPARTITE_A);
IntWritable oldKey = null;
double next_rank = 0;
double previous_rank = 0;
double diff = 0;
int local_diffs = 0;
random_coeff = (1 - mixing_c) / (double) number_nodes;
converge_threshold = ((double) 1.0 / (double) number_nodes) / 10;
Object[] keyValue = MPI_D.Recv();
while (keyValue != null) {
IntWritable key = (IntWritable) keyValue[0];
Text value = (Text) keyValue[1];
if (oldKey == null) {
oldKey = key;
}
if (!key.equals(oldKey)) {
next_rank = next_rank * mixing_c + random_coeff;
outrw.write(oldKey, new Text("v" + next_rank));
diff = Math.abs(previous_rank - next_rank);
if (diff > converge_threshold) {
local_diffs += 1;
}
oldKey = key;
next_rank = 0;
previous_rank = 0;
}
String cur_value_str = value.toString();
if (cur_value_str.charAt(0) == 's') {
previous_rank = Double.parseDouble(cur_value_str.substring(1));
} else {
next_rank += Double.parseDouble(cur_value_str.substring(1));
}
keyValue = MPI_D.Recv();
}
if (previous_rank != 0) {
next_rank = next_rank * mixing_c + random_coeff;
outrw.write(oldKey, new Text("v" + next_rank));
diff = Math.abs(previous_rank - next_rank);
if (diff > converge_threshold)
local_diffs += 1;
}
outrw.close();
reduceDiffs(local_diffs, rank);
}
MPI_D.Finalize();
} catch (MPI_D_Exception e) {
e.printStackTrace();
}
}
From source file:POP3Demo.java
public static void main(String[] args) throws Exception { int POP3Port = 110; Socket client = new Socket("127.0.0.1", POP3Port); InputStream is = client.getInputStream(); BufferedReader sockin = new BufferedReader(new InputStreamReader(is)); OutputStream os = client.getOutputStream(); PrintWriter sockout = new PrintWriter(os, true); String cmd = "user Smith"; sockout.println(cmd);/*from w w w. j av a2s . co m*/ String reply = sockin.readLine(); cmd = "pass "; sockout.println(cmd + "popPassword"); reply = sockin.readLine(); cmd = "stat"; sockout.println(cmd); reply = sockin.readLine(); if (reply == null) return; cmd = "retr 1"; sockout.println(cmd); if (cmd.toLowerCase().startsWith("retr") && reply.charAt(0) == '+') do { reply = sockin.readLine(); System.out.println("S:" + reply); if (reply != null && reply.length() > 0) if (reply.charAt(0) == '.') break; } while (true); cmd = "quit"; sockout.println(cmd); client.close(); }