本文整理了Java中java.util.Random.nextFloat()方法的一些代码示例，展示了Random.nextFloat()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Random.nextFloat()方法的具体详情如下：
包路径：java.util.Random
类名称：Random
方法名：nextFloat

Random.nextFloat介绍

[英]Returns a pseudo-random uniformly distributed floatin the half-open range [0.0, 1.0).
[中]返回半开范围[0.0,1.0]内的伪随机均匀分布浮点值。

代码示例

代码示例来源：origin: stanfordnlp/CoreNLP

public ConcatVectorConstructionRecord(Random r, int[] sizes) {
 int length = sizes.length;
 componentSizes = sizes;
 densePieces = new double[length][];
 sparseOffsets = new int[length];
 sparseValues = new double[length];
 for (int i = 0; i < length; i++) {
  boolean sparse = componentSizes[i] == -1;
  if (sparse) {
   sparseOffsets[i] = r.nextInt(100);
   sparseValues[i] = r.nextFloat();
  } else {
   densePieces[i] = new double[componentSizes[i]];
   for (int j = 0; j < densePieces[i].length; j++) {
    densePieces[i][j] = r.nextFloat();
   }
  }
 }
}

代码示例来源：origin: stackoverflow.com

float minX = 50.0f;
float maxX = 100.0f;

Random rand = new Random();

float finalX = rand.nextFloat() * (maxX - minX) + minX;

代码示例来源：origin: apache/incubator-pinot

@Override
public void init() {
 final Random rand = new Random(System.currentTimeMillis());
   final int start = rand.nextInt(cardinality);
   final int end = start + cardinality;
   for (int i = start; i < end; i++) {
  case LONG:
   longValues = new ArrayList<Long>();
   final long longStart = rand.nextInt(cardinality);
   final long longEnd = longStart + cardinality;
   for (long i = longStart; i < longEnd; i++) {
  case FLOAT:
   floatValues = new ArrayList<Float>();
   final float floatStart = rand.nextFloat() * rand.nextInt(1000);
   int floatCounter = 1;
   while (true) {

代码示例来源：origin: apache/flink

@Override
protected TestUserClassBase[] getTestData() {
  Random rnd = new Random(874597969123412341L);
  return new TestUserClassBase[]{
      new TestUserClass1(rnd.nextInt(), "foo", rnd.nextLong()),
      new TestUserClass2(rnd.nextInt(), "bar", rnd.nextFloat()),
      new TestUserClass3(rnd.nextInt(), "bar", rnd.nextFloat())
  };
}

代码示例来源：origin: apache/hbase

/**
 * From a list of regions pick a random one. Null can be returned which
 * {@link StochasticLoadBalancer#balanceCluster(Map)} recognize as signal to try a region move
 * rather than swap.
 *
 * @param cluster        The state of the cluster
 * @param server         index of the server
 * @param chanceOfNoSwap Chance that this will decide to try a move rather
 *                       than a swap.
 * @return a random {@link RegionInfo} or null if an asymmetrical move is
 *         suggested.
 */
protected int pickRandomRegion(Cluster cluster, int server, double chanceOfNoSwap) {
 // Check to see if this is just a move.
 if (cluster.regionsPerServer[server].length == 0 || RANDOM.nextFloat() < chanceOfNoSwap) {
  // signal a move only.
  return -1;
 }
 int rand = RANDOM.nextInt(cluster.regionsPerServer[server].length);
 return cluster.regionsPerServer[server][rand];
}
protected int pickRandomServer(Cluster cluster) {

代码示例来源：origin: Dreampie/Resty

protected void transform(int x, int y, double[] t) {
 Random r = new Random();
 int angle = (int) (r.nextFloat() * 255);
 t[0] = x + tx[angle];
 t[1] = y + ty[angle];
}

代码示例来源：origin: apache/flink

@Override
protected TestUserInterface[] getTestData() {
  Random rnd = new Random(874597969123412341L);
  return new TestUserInterface[]{
      new TestUserClass1(rnd.nextInt(), "foo", rnd.nextLong()),
      new TestUserClass2(rnd.nextInt(), "bar", rnd.nextFloat())
  };
}

代码示例来源：origin: GlowstoneMC/Glowstone

private static int calculateRandomizedModifier(Random random, ItemStack itemStack, int cost) {
  int modifier = calculateModifier(itemStack);
  if (modifier <= 0) {
    return -1;
  }
  modifier /= 4;
  modifier += 1;
  modifier = random.nextInt(modifier) + random.nextInt(modifier);
  modifier += 1 + cost;
  float randomValue = 1 + (random.nextFloat() + random.nextFloat() - 1.0F) * 0.15F;
  modifier = Math.round(modifier * randomValue);
  modifier = Math.max(1, modifier);
  return modifier;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public static Vector3f[] getPositions(int count, long seed) {
  Random rnd = new Random(seed);
  Vector3f[] vectors = new Vector3f[count];
  for (int i = 0; i < count; i++) {
    vectors[i] = new Vector3f((rnd.nextFloat() - 0.5f) * poiRadius,
        (rnd.nextFloat() - 0.5f) * poiRadius,
        (rnd.nextFloat() - 0.5f) * poiRadius);
  }
  return vectors;
}

代码示例来源：origin: spring-projects/spring-integration-samples

/**
 * @param loanRequest the loan request
 * @return a LoanQuote for the given request
 */
public LoanQuote quote(LoanRequest loanRequest) {
  Calendar calendar = Calendar.getInstance();
  LoanQuote loanQuote = new LoanQuote();
  Random random = new Random();
  loanQuote.setQuoteDate(calendar.getTime());
  calendar.add(Calendar.DAY_OF_YEAR, random.nextInt(25));
  loanQuote.setExpirationDate(calendar.getTime());
  loanQuote.setRate(random.nextFloat() + this.baseRate);
  loanQuote.setTerm(10 + random.nextInt(10));
  loanQuote.setAmount(250000 + random.nextInt(40000));
  loanQuote.setLender(this.name);
  return loanQuote;
}

代码示例来源：origin: dinuscxj/LoadingDrawable

private void initWaterDropHolders(RectF bottleRect, RectF waterRect) {
  float bottleRadius = bottleRect.width() / 2.0f;
  float lowestWaterPointY = waterRect.top;
  float twoSidesInterval = 0.2f * bottleRect.width();
  float atLeastDelayDuration = 0.1f;
  float unitDuration = 0.1f;
  float delayDurationRange = 0.6f;
  int radiusRandomRange = MAX_WATER_DROP_RADIUS - MIN_WATER_DROP_RADIUS;
  float currentXRandomRange = bottleRect.width() * 0.6f;
  for (int i = 0; i < DEFAULT_WATER_DROP_COUNT; i++) {
    WaterDropHolder waterDropHolder = new WaterDropHolder();
    waterDropHolder.mRadius = MIN_WATER_DROP_RADIUS + mRandom.nextInt(radiusRandomRange);
    waterDropHolder.mInitX = bottleRect.left + twoSidesInterval + mRandom.nextFloat() * currentXRandomRange;
    waterDropHolder.mInitY = lowestWaterPointY + waterDropHolder.mRadius / 2.0f;
    waterDropHolder.mRiseHeight = getMaxRiseHeight(bottleRadius, waterDropHolder.mRadius, waterDropHolder.mInitX - bottleRect.left)
        * (0.2f + 0.8f * mRandom.nextFloat());
    waterDropHolder.mDelayDuration = atLeastDelayDuration + mRandom.nextFloat() * delayDurationRange;
    waterDropHolder.mDuration = waterDropHolder.mRiseHeight / bottleRadius * unitDuration;
    mWaterDropHolders.add(waterDropHolder);
  }
}

代码示例来源：origin: ankidroid/Anki-Android

/**
   * Return a random float within the range of min and max.
   */
  public static float randomFloatInRange(float min, float max) {
    Random rand = new Random();
    return rand.nextFloat() * (max - min) + min;
  }
}

代码示例来源：origin: apache/kafka

Random random = new Random();
start = System.nanoTime();
for (int i = 0; i < iters; i++) {
  n += random.nextInt();
  floats[i] = random.nextFloat();
Arrays.sort(floats);

代码示例来源：origin: ivan-vasilev/neuralnetworks

int b = rand.nextInt(256);
    int g = rand.nextInt(256);
    int r = rand.nextInt(256);
    im.setRGB(j, k, (b << 16) | (g << 8) | r);
for (int j = 0; j < targetDimensions; j++)
  nextTarget[j] = rand.nextFloat();

代码示例来源：origin: JorgeCastilloPrz/AndroidFillableLoaders

private float nextFloat(float upperBound) {
  Random random = new Random();
  return (Math.abs(random.nextFloat()) % (upperBound + 1));
 }
}

代码示例来源：origin: apache/incubator-pinot

private List<GenericRow> createTestDataWithTimespec(TimeFieldSpec timeFieldSpec) {
 List<GenericRow> rows = new ArrayList<>();
 Random random = new Random();
 Map<String, Object> fields;
 for (int i = 0; i < NUM_ROWS; i++) {
  fields = new HashMap<>();
  fields.put(D1, RandomStringUtils.randomAlphabetic(2));
  fields.put(D2, RandomStringUtils.randomAlphabetic(5));
  fields.put(M1, Math.abs(random.nextInt()));
  fields.put(M2, Math.abs(random.nextFloat()));
  long timestamp = System.currentTimeMillis();
  Object timeColumnValue = timeFieldSpec.getIncomingGranularitySpec().fromMillis(timestamp);
  fields.put(timeFieldSpec.getName(), timeColumnValue);
  GenericRow row = new GenericRow();
  row.init(fields);
  rows.add(row);
 }
 return rows;
}

代码示例来源：origin: robinhood/ticker

@Override
protected void onUpdate() {
  final int digits = RANDOM.nextInt(2) + 6;
  ticker1.setText(getRandomNumber(digits));
  final String currencyFloat = Float.toString(RANDOM.nextFloat() * 100);
  ticker2.setText("$" + currencyFloat.substring(0, Math.min(digits, currencyFloat.length())));
  ticker3.setText(generateChars(RANDOM, alphabetlist, digits));
}

代码示例来源：origin: ankidroid/Anki-Android

public HttpSyncer(String hkey, Connection con) {
  mHKey = hkey;
  mSKey = Utils.checksum(Float.toString(new Random().nextFloat())).substring(0, 8);
  mCon = con;
  mPostVars = new HashMap<>();
}

代码示例来源：origin: davemorrissey/subsampling-scale-image-view

private void play() {
  Random random = new Random();
  if (view.isReady()) {
    float maxScale = view.getMaxScale();
    float minScale = view.getMinScale();
    float scale = (random.nextFloat() * (maxScale - minScale)) + minScale;
    PointF center = new PointF(random.nextInt(view.getSWidth()), random.nextInt(view.getSHeight()));
    view.setPin(center);
    AnimationBuilder animationBuilder = view.animateScaleAndCenter(scale, center);
    if (getPage() == 3) {
      animationBuilder.withDuration(2000).withEasing(EASE_OUT_QUAD).withInterruptible(false).start();
    } else {
      animationBuilder.withDuration(750).start();
    }
  }
}

代码示例来源：origin: facebook/facebook-android-sdk

private static void putFloatArray(String key, Bundle bundle) {
  int length = random.nextInt(50);
  float[] array = new float[length];
  for (int i = 0; i < length; i++) {
    array[i] = random.nextFloat();
  }
  bundle.putFloatArray(key, array);
}