List of usage examples for com.google.gwt.user.client Random nextInt
public static native int nextInt(int upperBound) ;
int between 0 (inclusive) and upperBound (exclusive) with roughly equal probability of returning any particular int in this range. From source file:gwt.material.demo.errai.client.page.addins.table.service.FakePersonService.java
License:Apache License
@Override public void getPeople(int startIndex, int viewSize, List<String> categories, AsyncCallback<People> async) { List<Person> flatData = new ArrayList<>(); if (categories == null) { // Load all data for (String category : FakePersonService.categories) { flatData.addAll(peopleMap.get(category)); }//w w w . j a v a2s . c o m } else { // Load data by categories for (String category : categories) { for (Person person : peopleMap.get(category)) { flatData.add(person); } } } People people = new People(); for (int i = startIndex; i < (startIndex + viewSize); i++) { try { people.add(flatData.get(i)); } catch (IndexOutOfBoundsException e) { // ignored. } } people.setAbsoluteTotal(flatData.size()); // Fake a delay for the demo new Timer() { @Override public void run() { async.onSuccess(people); } }.schedule(Math.min(200, Random.nextInt(500))); }
From source file:gwt.material.demo.errai.client.page.addins.table.service.FakePersonService.java
License:Apache License
@Override public void getCategories(AsyncCallback<List<String>> async) { // Fake a delay for the demo new Timer() { @Override/* w ww. jav a 2 s .co m*/ public void run() { async.onSuccess(categories); } }.schedule(Math.min(200, Random.nextInt(500))); }
From source file:gwtquery.plugins.draggable.client.GWTIntegrationSample.java
License:Apache License
/** * Create a Dynamic tree. The code comes from the GWT show case : * http://gwt.google.com/samples/Showcase/Showcase.html#!CwTree * * @return//from w w w .j a v a 2s . com */ private Widget createDynamicTree() { // Create a new tree Tree dynamicTree = new Tree(); // Add some default tree items for (int i = 0; i < 5; i++) { TreeItem item = dynamicTree.addItem("Item " + i); // Temporarily add an item so we can expand this node item.addItem(""); } // Add a handler that automatically generates some children dynamicTree.addOpenHandler(new OpenHandler<TreeItem>() { public void onOpen(OpenEvent<TreeItem> event) { TreeItem item = event.getTarget(); if (item.getChildCount() == 1) { // Close the item immediately item.setState(false, false); // Add a random number of children to the item String itemText = item.getText(); int numChildren = Random.nextInt(5) + 2; for (int i = 0; i < numChildren; i++) { TreeItem child = item.addItem(itemText + "." + i); child.addItem(""); } // Remove the temporary item when we finish loading item.getChild(0).remove(); // Reopen the item item.setState(true, false); } } }); // Return the tree (decorated) DecoratorPanel decPanel = new DecoratorPanel(); decPanel.setWidget(dynamicTree); return decPanel; }
From source file:gwtquery.plugins.droppable.client.contactcellsample.ContactDatabase.java
License:Apache License
/** * Create a new random {@link ContactInfo}. * // w w w .jav a 2 s . c o m * @return the new {@link ContactInfo}. */ @SuppressWarnings("deprecation") private ContactInfo createContactInfo() { // set all created contact in OTHERS category ContactInfo contact = new ContactInfo(Category.OTHERS); contact.setLastName(nextValue(LAST_NAMES)); if (Random.nextBoolean()) { // Male. contact.setFirstName(nextValue(MALE_FIRST_NAMES)); } else { // Female. contact.setFirstName(nextValue(FEMALE_FIRST_NAMES)); } // Create a birthday between 20-80 years ago. int year = (new Date()).getYear() - 21 - Random.nextInt(61); contact.setBirthday(new Date(year, Random.nextInt(12), 1 + Random.nextInt(31))); // Create an address. int addrNum = 1 + Random.nextInt(999); String addrStreet = nextValue(STREET_NAMES); String addrSuffix = nextValue(STREET_SUFFIX); contact.setAddress(addrNum + " " + addrStreet + " " + addrSuffix); return contact; }
From source file:gwtquery.plugins.droppable.client.gfindersample.FileSystem.java
License:Apache License
/** * Generate contents for the directory <code>root</code> * /* ww w. j a v a2 s . co m*/ * @param root * @param fileNbr * @param subDirNbr */ private void generateDirContent(File root, int fileNbr, int subDirNbr) { assert root.getType() == FileType.DIRECTORY; ListDataProvider<File> files = new ListDataProvider<File>(); for (int i = 0; i < subDirNbr; i++) { File f = new File(FileType.DIRECTORY); f.setName(root.getName() + "Event" + i); f.setParent(root); files.getList().add(f); generateDirContent(f, Math.max(5, Random.nextInt(MAX_FILE_NBR)), 0); } for (int i = 0; i < fileNbr; i++) { File f = new File(FileType.FILE); f.setName(root.getName() + "PICT" + i + ".jpg"); f.setParent(root); files.getList().add(f); } filesByDirectory.put(root, files); }
From source file:gwtquery.plugins.droppable.client.gfindersample.FileSystem.java
License:Apache License
/** * Generate the file system/* www .j a v a2 s.c o m*/ * * @param rootDirectory */ private void generateDirTree(File rootDirectory) { // generate user directories ListDataProvider<File> files = new ListDataProvider<File>(); for (int i = 0; i < Math.max(10, Random.nextInt(20)); i++) { File f = new File(FileType.DIRECTORY); f.setName(nextValue(USER_DIRECTORY_NAME)); f.setParent(rootDirectory); files.getList().add(f); // generate Event sub directories generateDirContent(f, 0, Math.max(5, Random.nextInt(MAX_DIR_NBR))); } filesByDirectory.put(rootDirectory, files); }
From source file:gwtquery.plugins.gwtcaptcha.client.Captcha.java
License:Apache License
private int rnd(int n) { return n > 0 ? Random.nextInt(n) : Random.nextInt(); }
From source file:java.math.Primality.java
License:Apache License
/** * A random number is generated until a probable prime number is found. * /* w w w . jav a 2s. c o m*/ * @see BigInteger#BigInteger(int,int,Random) * @see BigInteger#probablePrime(int,Random) * @see #isProbablePrime(BigInteger, int) */ static BigInteger consBigInteger(int bitLength, int certainty, Random rnd) { // PRE: bitLength >= 2; // For small numbers get a random prime from the prime table if (bitLength <= 10) { int rp[] = offsetPrimes[bitLength]; return BIprimes[rp[0] + rnd.nextInt(rp[1])]; } int shiftCount = (-bitLength) & 31; int last = (bitLength + 31) >> 5; BigInteger n = new BigInteger(1, last, new int[last]); last--; do {// To fill the array with random integers for (int i = 0; i < n.numberLength; i++) { n.digits[i] = rnd.nextInt(); } // To fix to the correct bitLength n.digits[last] |= 0x80000000; n.digits[last] >>>= shiftCount; // To create an odd number n.digits[0] |= 1; } while (!isProbablePrime(n, certainty)); return n; }
From source file:jdramaix.client.ContactDatabase.java
License:Apache License
/** * Create a new random {@link ContactInfo}. * * @return the new {@link ContactInfo}./*w ww . j a va2 s .c om*/ */ @SuppressWarnings("deprecation") private ContactInfo createContactInfo() { ContactInfo contact = new ContactInfo(); contact.setLastName(nextValue(LAST_NAMES)); if (Random.nextBoolean()) { // Male. contact.setFirstName(nextValue(MALE_FIRST_NAMES)); } else { // Female. contact.setFirstName(nextValue(FEMALE_FIRST_NAMES)); } // Create a birthday between 20-80 years ago. int year = (new Date()).getYear() - 21 - Random.nextInt(61); contact.setBirthday(new Date(year, Random.nextInt(12), 1 + Random.nextInt(31))); // Create an address. int addrNum = 1 + Random.nextInt(999); String addrStreet = nextValue(STREET_NAMES); String addrSuffix = nextValue(STREET_SUFFIX); contact.setAddress(addrNum + " " + addrStreet + " " + addrSuffix); return contact; }
From source file:net.husoftware.client.spike.DragDropTree.java
License:Open Source License
@Override public void onModuleLoad() { Tree tree = new Tree(); RootPanel.get("main").add(tree); // root is not draggable. TreeItem treeItem = new TreeItem(new DragDropLabel("root", false, true)); tree.addItem(treeItem);/* ww w.j av a2s . com*/ // Add some folders treeItem.addItem(new DragDropLabel("folder1", true, true)); treeItem.addItem(new DragDropLabel("folder2", true, true)); TreeItem folder3 = treeItem.addItem(new DragDropLabel("folder3", true, true)); folder3.addItem(new DragDropLabel("folder3-1", true, true)); folder3.addItem(new DragDropLabel("folder3-2", true, true)); // Add some leaves to the tree List<TreeItem> stack = new ArrayList<TreeItem>(); stack.add(tree.getItem(0)); int filenum = 1; while (!stack.isEmpty()) { TreeItem item = stack.remove(0); for (int i = 0; i < item.getChildCount(); i++) { stack.add(item.getChild(i)); } int files = Random.nextInt(4) + 1; for (int j = 0; j < files; j++) { item.addItem(new TreeItem(new DragDropLabel("File " + filenum, true, false))); filenum++; } item.setState(true); } }