Example usage for java.lang Math random

List of usage examples for java.lang Math random

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Introduction

In this page you can find the example usage for java.lang Math random.

Prototype

public static double random()

Source Link

Document

Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0 .

Usage

From source file:com.apress.prospringintegration.springenterprise.stocks.transactions.template.TransactionalStockBrokerService.java

public void preFillStocks(final String exchangeId, final String... symbols) {
    final Random random = new Random();

    transactionTemplate.execute(new TransactionCallbackWithoutResult() {
        protected void doInTransactionWithoutResult(TransactionStatus status) {
            int i = 0;
            for (String sym : symbols) {
                float pp = (float) Math.random() * 100.0f;
                int qq = (int) Math.random() * 250;
                Stock s = new Stock(sym, "INV00" + i, exchangeId, pp, qq, Calendar.getInstance().getTime());
                stockDao.insert(s);/*w w w.  j  av a 2 s  . c  o  m*/
                System.out.println("ORIG INVENTORY: " + s.getInventoryCode() + " ");
                int randomized = (random.nextInt(100) % 4) == 0 ? 0 : i;
                s.setInventoryCode("INV00" + randomized);
                System.out.println("NEW RANDOMIZED INVENTORY:" + s.getInventoryCode() + " " + randomized);
                stockDao.update(s);
                i++;
            }
        }
    });
}

From source file:com.acme.spring.inject.repository.impl.DefaultStockRepository.java

/**
 * {@inheritDoc}//from  w w w  .  ja va2  s  .  c om
 */
@Override
public long save(Stock stock) {

    validateNoNull(stock, "stock");
    validateNotEmpty(stock.getSymbol(), "symbol");

    // generates 'unique' identifier
    stock.setId((long) (Math.random() * 10E4D));

    // saves the stock in map
    stockMap.put(stock.getSymbol(), stock);

    // returns the assigned id
    return stock.getId();
}

From source file:jp.primecloud.auto.ui.mock.service.MockFarmService.java

@Override
public Long createFarm(Long userNo, String farmName, String comment) {
    Long farmNo = (long) (Math.random() * 100);
    log.info(MessageUtils.format("Create farm.(farmNo={0})", farmNo));
    return farmNo;
}

From source file:com.microsoft.office.core.FoldersTestCase.java

@Test
public void moveAndCopyTest() {
    final String name = "move and copy test" + (int) (Math.random() * 1000000);
    folder = Me.getRootFolder().getChildFolders().newFolder();
    folder.setDisplayName(name);//from w  w  w  .j ava  2s  . c  om
    IFolder copied = null;
    folder = folder.move(Me.getDrafts().getId());
    copied = folder.copy(Me.getRootFolder().getId());

    Me.getFolders().delete(folder.getId());
    if (copied != null) {
        Me.getFolders().delete(copied.getId());
    }

    Me.flush();
}

From source file:edu.umass.cs.reconfiguration.reconfigurationpackets.DemandReport.java

/**
 * @param initiator/*from  ww  w.  j  a va 2s . c  om*/
 * @param name
 * @param epochNumber
 * @param demand
 */
public DemandReport(NodeIDType initiator, String name, int epochNumber, AbstractDemandProfile demand) {
    super(initiator, ReconfigurationPacket.PacketType.DEMAND_REPORT, name, epochNumber);
    this.stats = demand.getStats();
    this.requestID = (long) (Math.random() * Long.MAX_VALUE);
}

From source file:Main.java

@Override
public void start(Stage stage) {
    final NumberAxis xAxis = new NumberAxis();
    final CategoryAxis yAxis = new CategoryAxis();
    final BarChart<Number, String> bc = new BarChart<Number, String>(xAxis, yAxis);
    bc.setTitle("Summary");
    xAxis.setLabel("Value");
    xAxis.setTickLabelRotation(90);/*ww  w.j  a  v  a  2 s .co  m*/
    yAxis.setLabel("Item");

    XYChart.Series series1 = new XYChart.Series();
    series1.setName("2003");
    series1.getData().add(new XYChart.Data(2, itemA));
    series1.getData().add(new XYChart.Data(20, itemB));
    series1.getData().add(new XYChart.Data(10, itemC));

    XYChart.Series series2 = new XYChart.Series();
    series2.setName("2004");
    series2.getData().add(new XYChart.Data(50, itemA));
    series2.getData().add(new XYChart.Data(41, itemB));
    series2.getData().add(new XYChart.Data(45, itemC));

    XYChart.Series series3 = new XYChart.Series();
    series3.setName("2005");
    series3.getData().add(new XYChart.Data(45, itemA));
    series3.getData().add(new XYChart.Data(44, itemB));
    series3.getData().add(new XYChart.Data(18, itemC));

    Timeline tl = new Timeline();
    tl.getKeyFrames().add(new KeyFrame(Duration.millis(500), new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent actionEvent) {
            for (XYChart.Series<Number, String> series : bc.getData()) {
                for (XYChart.Data<Number, String> data : series.getData()) {
                    data.setXValue(Math.random() * 100);
                }
            }
        }
    }));
    tl.setCycleCount(Animation.INDEFINITE);
    tl.play();

    Scene scene = new Scene(bc, 800, 600);
    bc.getData().addAll(series1, series2, series3);
    stage.setScene(scene);
    stage.show();
}

From source file:org.eclipse.swt.examples.graphics.FontBounceTab.java

@Override
public void next(int width, int height) {
    x += incX;//  w  w w  .  j ava 2  s. c  o m
    y += incY;
    float random = (float) Math.random();

    // collision with right side of screen
    if (x + textWidth > width) {
        x = width - textWidth;
        incX = random * -width / 16 - 1;
        fontFace = 0;
        fontSize = 125;
        fillColor = SWT.COLOR_DARK_BLUE;
        foreGrdColor = SWT.COLOR_YELLOW;
        fontStyle = SWT.ITALIC;
    }
    // collision with left side of screen
    if (x < 0) {
        x = 0;
        incX = random * width / 16 + 1;
        fontFace = 1;
        fontSize = 80;
        fillColor = SWT.COLOR_DARK_MAGENTA;
        foreGrdColor = SWT.COLOR_CYAN;
        fontStyle = SWT.NONE;
    }
    // collision with bottom side of screen
    if (y + textHeight > height) {
        y = (height - textHeight) - 2;
        incY = random * -height / 16 - 1;
        fontFace = 2;
        fontSize = 100;
        fillColor = SWT.COLOR_YELLOW;
        foreGrdColor = SWT.COLOR_BLACK;
        fontStyle = SWT.BOLD;
    }
    // collision with top side of screen
    if (y < 0) {
        y = 0;
        incY = random * height / 16 + 1;
        fontFace = 3;
        fontSize = 120;
        fillColor = SWT.COLOR_GREEN;
        foreGrdColor = SWT.COLOR_GRAY;
        fontStyle = SWT.NONE;
    }
}

From source file:us.putney.controllers.SampleServiceController.java

static Map getPower() {
    Map<String, Object> power = new HashMap<String, Object>();
    power.put("name", powers[(int) Math.floor(Math.random() * powers.length)]);
    power.put("level", (int) (Math.random() * 10));
    return power;
}

From source file:IK.G.java

public static double random(double a, double b) {
    return a + ((abs(a - b)) * Math.random());
}

From source file:io.starter.TestReact.java

public JSONObject getJSON() {
    JSONObject dtx = new JSONObject();

    dtx.put("name", "Object 2");
    dtx.put("description", "Test Object Number Two");

    // set a url//from w  w  w .  ja v  a  2s. com
    String urx = "/table_view.jsp?tablename=User&query=id:";
    dtx.put("url", urx);

    // add children
    JSONArray jarr = new JSONArray();
    for (int t = 0; t < 5; t++) {
        JSONObject jab = new JSONObject();
        jab.put("name", "Location " + t);
        jab.put("latitude", (t * (430 * Math.random())) + "." + Math.random());
        jab.put("longitude", (t * (1300 * Math.random())) + "." + Math.random());

        jarr.put(jab);
    }

    dtx.put("locations", jarr);

    return dtx;
}