Example usage for java.lang Float parseFloat

List of usage examples for java.lang Float parseFloat

  1. HOME
  2. Java
  3. java
  4. java.lang.*
  5. Float
  6. parseFloat

Introduction

In this page you can find the example usage for java.lang Float parseFloat.

Prototype

public static float parseFloat(String s) throws NumberFormatException

Source Link

Document

Returns a new float initialized to the value represented by the specified String , as performed by the valueOf method of class Float .

Usage

From source file:org.codelibs.fess.es.config.exentity.DataConfig.java

public void setBoostValue(final String value) {
    if (value != null) {
        try {/*w w w .  ja v  a 2s  .co m*/
            boost = Float.parseFloat(value);
        } catch (final Exception e) {
        }
    }
}

From source file:io.anserini.embeddings.IndexW2V.java

public void indexEmbeddings() throws IOException, InterruptedException {
    LOG.info("Starting indexer...");
    long startTime = System.currentTimeMillis();
    final WhitespaceAnalyzer analyzer = new WhitespaceAnalyzer();
    final IndexWriterConfig config = new IndexWriterConfig(analyzer);
    final IndexWriter writer = new IndexWriter(directory, config);

    BufferedReader bRdr = new BufferedReader(new FileReader(args.input));
    String line = null;/* w w w  . j a v  a  2 s .c o  m*/
    bRdr.readLine();

    Document document = new Document();
    ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
    int cnt = 0;

    while ((line = bRdr.readLine()) != null) {
        String[] termEmbedding = line.trim().split("\t");
        document.add(new StringField(LuceneDocumentGenerator.FIELD_ID, termEmbedding[0], Field.Store.NO));
        String[] parts = termEmbedding[1].split(" ");

        for (int i = 0; i < parts.length; ++i) {
            byteStream.write(ByteBuffer.allocate(4).putFloat(Float.parseFloat(parts[i])).array());
        }
        document.add(new StoredField(FIELD_BODY, byteStream.toByteArray()));

        byteStream.flush();
        byteStream.reset();
        writer.addDocument(document);
        document.clear();
        cnt++;

        if (cnt % 100000 == 0) {
            LOG.info(cnt + " terms indexed");
        }
    }

    LOG.info(String.format("Total of %s terms added", cnt));

    try {
        writer.commit();
        writer.forceMerge(1);
    } finally {
        try {
            writer.close();
        } catch (IOException e) {
            LOG.error(e);
        }
    }

    LOG.info("Total elapsed time: " + (System.currentTimeMillis() - startTime) + "ms");
}

From source file:hivemall.classifier.multiclass.MulticlassSoftConfidenceWeightedUDTF.java

@Override
protected CommandLine processOptions(ObjectInspector[] argOIs) throws UDFArgumentException {
    final CommandLine cl = super.processOptions(argOIs);

    float phi = 1.f;
    float c = 1.f;
    if (cl != null) {
        String phi_str = cl.getOptionValue("phi");
        if (phi_str == null) {
            String eta_str = cl.getOptionValue("eta");
            if (eta_str != null) {
                double eta = Double.parseDouble(eta_str);
                if (eta <= 0.5 || eta > 1) {
                    throw new UDFArgumentException(
                            "Confidence hyperparameter eta must be in range (0.5, 1]: " + eta_str);
                }// ww  w.  ja va  2s . com
                phi = (float) StatsUtils.probit(eta, 5d);
            }
        } else {
            phi = Float.parseFloat(phi_str);
        }

        String c_str = cl.getOptionValue("c");
        if (c_str != null) {
            c = Float.parseFloat(c_str);
            if (!(c > 0.f)) {
                throw new UDFArgumentException("Aggressiveness parameter C must be C > 0: " + c);
            }
        }
    }

    this.phi = phi;
    this.c = c;

    return cl;
}

From source file:keel.Algorithms.Genetic_Rule_Learning.PART.C45.java

/** Constructor.
 *
 * @param paramFile The parameters file.
 *
 * @throws Exception If the algorithm cannot be executed.
 *//* ww  w . j  a va 2s  . c  om*/
public C45(parseParameters paramFile) throws Exception {
    try {

        // starts the time
        long startTime = System.currentTimeMillis();

        /* Sets the options of the execution from text file*/
        //StreamTokenizer tokenizer = new StreamTokenizer( new BufferedReader( new FileReader( paramFile ) ) );
        //initTokenizer( tokenizer) ;
        //setOptions( tokenizer );

        //File Names
        modelFileName = paramFile.getTrainingInputFile();
        trainFileName = paramFile.getValidationInputFile();
        testFileName = paramFile.getTestInputFile();
        //Options
        prune = Boolean.valueOf(paramFile.getParameter(1)).booleanValue(); //wether the tree must be pruned or not
        confidence = Float.parseFloat(paramFile.getParameter(2)); //confidence level for the uniform distribution
        minItemsets = Integer.parseInt(paramFile.getParameter(3)); //itemset per Leaf
        if (confidence < 0 || confidence > 1) {
            confidence = 0.25F;
            System.err.println("Error: Confidence must be in the interval [0,1]");
            System.err.println("Using default value: 0.25");
        }
        if (minItemsets <= 0) {
            minItemsets = 2;
            System.err.println("Error: itemsetPerLeaf must be greater than 0");
            System.err.println("Using default value: 2");
        }

        /* Sets the options from XML file */
        /** para commons.configuration
             XMLConfiguration config = new XMLConfiguration(paramFile);
             setOptions( config );
         */

        /* Initializes the dataset. */
        modelDataset = new MyDataset(modelFileName, true);
        trainDataset = new MyDataset(trainFileName, false);
        testDataset = new MyDataset(testFileName, false);

        priorsProbabilities = new double[modelDataset.numClasses()];
        priorsProbabilities();
        marginCounts = new double[marginResolution + 1];

        // generate the tree
        generateTree(modelDataset);

        //printTrain();
        //printTest();
        //printResult();
    } catch (Exception e) {
        System.err.println(e.getMessage());
        System.exit(-1);
    }
}

From source file:com.jaeksoft.searchlib.analysis.ClassFactory.java

protected float getFloatProperty(ClassPropertyEnum prop) {
    String value = getProperty(prop).getValue();
    if (value == null)
        return 1.0F;
    return Float.parseFloat(value);
}

From source file:it.readbeyond.minstrel.media.AudioHandler.java

/**
 * Executes the request and returns PluginResult.
 * @param action       The action to execute.
 * @param args          JSONArry of arguments for the plugin.
 * @param callbackContext      The callback context used when calling back into JavaScript.
 * @return             A PluginResult object with a status and message.
 *///w  w w  .ja  v  a2  s.c om
public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
    CordovaResourceApi resourceApi = webView.getResourceApi();
    PluginResult.Status status = PluginResult.Status.OK;
    String result = "";

    if (action.equals("startPlayingAudio")) {
        String target = args.getString(1);
        String fileUriStr;
        try {
            Uri targetUri = resourceApi.remapUri(Uri.parse(target));
            fileUriStr = targetUri.toString();
        } catch (IllegalArgumentException e) {
            fileUriStr = target;
        }
        this.startPlayingAudio(args.getString(0), FileHelper.stripFileProtocol(fileUriStr));
    } else if (action.equals("seekToAudio")) {
        this.seekToAudio(args.getString(0), args.getInt(1));
    } else if (action.equals("pausePlayingAudio")) {
        this.pausePlayingAudio(args.getString(0));
    } else if (action.equals("stopPlayingAudio")) {
        this.stopPlayingAudio(args.getString(0));
    } else if (action.equals("setVolume")) {
        try {
            this.setVolume(args.getString(0), Float.parseFloat(args.getString(1)));
        } catch (NumberFormatException nfe) {
            //no-op
        }
    } else if (action.equals("getCurrentPositionAudio")) {
        float f = this.getCurrentPositionAudio(args.getString(0));
        callbackContext.sendPluginResult(new PluginResult(status, f));
        return true;
    } else if (action.equals("getDurationAudio")) {
        float f = this.getDurationAudio(args.getString(0), args.getString(1));
        callbackContext.sendPluginResult(new PluginResult(status, f));
        return true;
    } else if (action.equals("create")) {
        String id = args.getString(0);
        String src = FileHelper.stripFileProtocol(args.getString(1));
        getOrCreatePlayer(id, src);
    } else if (action.equals("release")) {
        boolean b = this.release(args.getString(0));
        callbackContext.sendPluginResult(new PluginResult(status, b));
        return true;
    } else if (action.equals("messageChannel")) {
        messageChannel = callbackContext;
        return true;
    } else { // Unrecognized action.
        return false;
    }

    callbackContext.sendPluginResult(new PluginResult(status, result));

    return true;
}

From source file:com.joliciel.csvLearner.features.NormalisationLimitReader.java

private void readCSVFile(InputStream csvInputStream, Map<String, Float> featureToMaxMap) {
    Scanner scanner = new Scanner(csvInputStream, "UTF-8");
    try {//w w  w.  ja va2 s .  c  om
        boolean firstLine = true;
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (!firstLine) {
                List<String> cells = CSVFormatter.getCSVCells(line);
                String featureName = cells.get(0);
                float maxValue = Float.parseFloat(cells.get(1));
                featureToMaxMap.put(featureName, maxValue);
            }
            firstLine = false;
        }
    } finally {
        scanner.close();
    }
}

From source file:net.loyin.jfinal.TypeConverter.java

/**
 * test for all types of mysql/* www  .  j  a  v  a  2 s.  com*/
 * 
 * ???:
 * 1: ?,?,? "", ??? null.
 * 2: ???
 * 3: ? model string,? "" ? null??,
 *    ,  null, ? ""
 * 
 * ?: 1:clazz??String.class, ?sblank,
 *       ? null, ?
 *      2:???? null ?? ModelInjector 
 */
public static final Object convert(Class<?> clazz, String s) throws ParseException {
    // mysql type: varchar, char, enum, set, text, tinytext, mediumtext, longtext
    if (clazz == String.class) {
        return (StringUtils.isEmpty(s) ? null : s); // ???? "", ,?? null.
    }
    s = s.trim();
    if (StringUtils.isEmpty(s)) { // ?? String?,? null,  ??
        return null;
    }
    // ??,, ?, ??null s ?(????null, ?"")

    Object result = null;
    // mysql type: int, integer, tinyint(n) n > 1, smallint, mediumint
    if (clazz == Integer.class || clazz == int.class) {
        result = Integer.parseInt(s);
    }
    // mysql type: bigint
    else if (clazz == Long.class || clazz == long.class) {
        result = Long.parseLong(s);
    }
    // ?java.util.Data?, java.sql.Date, java.sql.Time,java.sql.Timestamp  java.util.Data,  getDate??
    else if (clazz == java.util.Date.class) {
        if (s.length() >= timeStampLen) { // if (x < timeStampLen)  datePattern ?
            // Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]
            // result = new java.util.Date(java.sql.Timestamp.valueOf(s).getTime());   // error under jdk 64bit(maybe)
            result = new SimpleDateFormat(timeStampPattern).parse(s);
        } else {
            // result = new java.util.Date(java.sql.Date.valueOf(s).getTime());   // error under jdk 64bit
            result = new SimpleDateFormat(datePattern).parse(s);
        }
    }
    // mysql type: date, year
    else if (clazz == java.sql.Date.class) {
        if (s.length() >= timeStampLen) { // if (x < timeStampLen)  datePattern ?
            // result = new java.sql.Date(java.sql.Timestamp.valueOf(s).getTime());   // error under jdk 64bit(maybe)
            result = new java.sql.Date(new SimpleDateFormat(timeStampPattern).parse(s).getTime());
        } else {
            // result = new java.sql.Date(java.sql.Date.valueOf(s).getTime());   // error under jdk 64bit
            result = new java.sql.Date(new SimpleDateFormat(datePattern).parse(s).getTime());
        }
    }
    // mysql type: time
    else if (clazz == java.sql.Time.class) {
        result = java.sql.Time.valueOf(s);
    }
    // mysql type: timestamp, datetime
    else if (clazz == java.sql.Timestamp.class) {
        result = java.sql.Timestamp.valueOf(s);
    }
    // mysql type: real, double
    else if (clazz == Double.class) {
        result = Double.parseDouble(s);
    }
    // mysql type: float
    else if (clazz == Float.class) {
        result = Float.parseFloat(s);
    }
    // mysql type: bit, tinyint(1)
    else if (clazz == Boolean.class) {
        result = Boolean.parseBoolean(s) || "1".equals(s);
    }
    // mysql type: decimal, numeric
    else if (clazz == java.math.BigDecimal.class) {
        result = new java.math.BigDecimal(s);
    }
    // mysql type: unsigned bigint
    else if (clazz == java.math.BigInteger.class) {
        result = new java.math.BigInteger(s);
    }
    // mysql type: binary, varbinary, tinyblob, blob, mediumblob, longblob. I have not finished the test.
    else if (clazz == byte[].class) {
        result = s.getBytes();
    } else {
        throw new RuntimeException(
                clazz.getName() + " can not be converted, please use other type of attributes in your model!");
    }

    return result;
}

From source file:free.rm.skytube.gui.businessobjects.UpdatesChecker.java

/**
 * Extracts from json the latest APP's version.
 *
 * @param json/*from w w  w. j a  v a 2s.c o m*/
 * @return
 * @throws Exception
 */
private float getLatestVersionNumber(JSONObject json) throws Exception {
    String versionNumberStr = json.getString("tag_name").substring(1); // tag_name = "v2.0" --> so we are going to delete the 'v' character
    return Float.parseFloat(versionNumberStr);
}

From source file:io.druid.benchmark.datagen.BenchmarkColumnValueGenerator.java

private Object convertType(Object input, ValueType type) {
    if (input == null) {
        return null;
    }//  w  w w. java  2 s  .com

    Object ret;
    switch (type) {
    case STRING:
        ret = input.toString();
        break;
    case LONG:
        if (input instanceof Number) {
            ret = ((Number) input).longValue();
        } else {
            ret = Long.parseLong(input.toString());
        }
        break;
    case FLOAT:
        if (input instanceof Number) {
            ret = ((Number) input).floatValue();
        } else {
            ret = Float.parseFloat(input.toString());
        }
        break;
    default:
        throw new UnsupportedOperationException("Unknown data type: " + type);
    }
    return ret;
}