Example usage for java.util ArrayList subList

Introduction

In this page you can find the example usage for java.util ArrayList subList.

Prototype

public List<E> subList(int fromIndex, int toIndex) 

Source Link

Document

Returns a view of the portion of this list between the specified fromIndex , inclusive, and toIndex , exclusive.

Usage

From source file:de.alpharogroup.collections.ListExtensions.java

/**
 * The Method removeLastValues(ArrayList, int) remove the last Values.
 *
 * @param <T>//from w  w w  .j a va2  s  .  c o m
 *            the generic type
 * @param v
 *            The Vector with the received Messages.
 * @param remove
 *            How much to remove.
 * @return the list
 */
public static <T> List<T> removeLastValues(final ArrayList<T> v, final int remove) {
    if (remove < v.size()) {
        final List<T> l = v.subList(remove, v.size());
        return l;
    }
    throw new IllegalArgumentException("You cannot remove "
            + "more element than in the ArrayList exists. \nSize from ArrayList:" + v.size() + "\n"
            + "Elements to be removed:" + remove + "\n The same ArrayList will be returned.");
}

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From source file:Framework.DBFramework.java

/**
 * Return CSV string which represent the dataset
 *
 * @param testFolder the folder in which the files for test are located
 * @param featureExtractor a Feature Extractor object
 * @param selectedFeatures the top selected features to build the dataset
 * with/*  w ww .j a  v a2 s.com*/
 * @param topFeatures the number of top features to extract
 * @param numOfElementsInTrainset number of elements in the training from
 * which the classifier were trained
 * @param featureRepresentation featureRepresentation
 * @param addElementIDColumn add prefix column identifying the record
 * @param addClassificationColumn add suffix column identifying the class of
 * the record
 * @return CSV string which represent the dataset
 */
public static StringBuilder GenerateTestSet(String testFolder, AFeatureExtractor<String> featureExtractor,
        ArrayList<Pair<String, Integer>> selectedFeatures, int topFeatures, int numOfElementsInTrainset,
        FeatureRepresentation featureRepresentation, boolean addElementIDColumn,
        boolean addClassificationColumn) {
    DatasetCSVBuilder<String> datasetBuilder = new DatasetCSVBuilder<>();
    ArrayList<String> testElements = Directories.GetDirectoryFilesPaths(testFolder);
    selectedFeatures = new ArrayList<>(selectedFeatures.subList(0, topFeatures));
    StringBuilder datasetCSVHeader = DatasetCSVBuilder.GetDatasetHeaderCSV(topFeatures, addElementIDColumn,
            addClassificationColumn);
    StringBuilder datasetCSV = datasetBuilder.BuildDatabaseCSV(testElements, featureExtractor, selectedFeatures,
            numOfElementsInTrainset, featureRepresentation, Classification.Unknown, addElementIDColumn,
            addClassificationColumn);
    return datasetCSVHeader.append("\n").append(datasetCSV);
}

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From source file:org.samjoey.graphing.GraphUtility.java

/**
 *
 * @param games the games to graph//from w  ww  .  j  ava2  s.  c  o  m
 * @param key the variable to create the graph with
 * @param start if index, the index at which to start, else the percent in
 * the game at which to start
 * @param stop if index, the index at which to end, else the percent in the
 * game at which to end
 * @param index
 * @return
 */
public static ChartPanel getCustomGraph(Game[] games, String key, double start, double stop, boolean index) {
    XYSeriesCollection dataset = new XYSeriesCollection();
    for (Game game : games) {
        ArrayList<Double> data = game.getVar(key);
        int begin;
        int end;
        if (index) {
            begin = (int) start;
            end = (int) stop;
        } else {
            begin = (int) (data.size() / start);
            end = (int) (data.size() / stop);
        }
        XYSeries series = GraphUtility.createSeries(data.subList(begin, end), "" + game.getId());
        dataset.addSeries(series);
    }
    JFreeChart chart = ChartFactory.createXYLineChart(key, // chart title
            "X", // x axis label
            "Y", // y axis label
            dataset, // data
            PlotOrientation.VERTICAL, false, // include legend
            true, // tooltips
            false // urls
    );
    XYPlot plot = chart.getXYPlot();
    XYItemRenderer rend = plot.getRenderer();
    for (int i = 0; i < games.length; i++) {
        Game g = games[i];
        if (g.getWinner() == 1) {
            rend.setSeriesPaint(i, Color.RED);
        }
        if (g.getWinner() == 2) {
            rend.setSeriesPaint(i, Color.BLACK);
        }
        if (g.getWinner() == 0) {
            rend.setSeriesPaint(i, Color.PINK);
        }
    }
    ChartPanel chartPanel = new ChartPanel(chart);
    return chartPanel;
}

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From source file:org.apache.hadoop.hive.ql.io.orc.RecordReaderFactory.java

private static List<OrcProto.Type> getSchemaOnRead(int numCols, Configuration conf) {
    String columnTypeProperty = conf.get(serdeConstants.LIST_COLUMN_TYPES);
    final String columnNameProperty = conf.get(serdeConstants.LIST_COLUMNS);
    if (columnTypeProperty == null || columnNameProperty == null) {
        return null;
    }//from   www .  jav  a 2 s . c  o m

    ArrayList<String> columnNames = Lists.newArrayList(columnNameProperty.split(","));
    ArrayList<TypeInfo> fieldTypes = TypeInfoUtils.getTypeInfosFromTypeString(columnTypeProperty);
    StructTypeInfo structTypeInfo = new StructTypeInfo();
    // Column types from conf includes virtual and partition columns at the end. We consider only
    // the actual columns in the file.
    structTypeInfo.setAllStructFieldNames(Lists.newArrayList(columnNames.subList(0, numCols)));
    structTypeInfo.setAllStructFieldTypeInfos(Lists.newArrayList(fieldTypes.subList(0, numCols)));
    ObjectInspector oi = TypeInfoUtils.getStandardJavaObjectInspectorFromTypeInfo(structTypeInfo);
    return getOrcTypes(oi);
}

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From source file:org.mycore.common.MCRUtils.java

/**
 * The method cut an ArrayList for a maximum of items.
 * /*from ww w .  java  2  s .  co m*/
 * @param arrayin
 *            The incoming ArrayList
 * @param maxitems
 *            The maximum number of items
 * @return the cutted ArrayList
 * @deprecated use {@link List#subList(int, int)} instead
 */
@Deprecated
public static <T> ArrayList<T> cutArrayList(ArrayList<T> arrayin, int maxitems) {
    return new ArrayList<>(arrayin.subList(0, Math.max(0, maxitems)));
}

---

From source file:eionet.cr.web.action.admin.harvestscripts.HarvestScriptParser.java

/**
 *
 * @param str//  w  ww .j  ava 2 s  . co  m
 * @param token
 * @return
 */
private static String substringBeforeToken(String str, String token) {

    if (str == null || str.trim().length() == 0 || token == null || token.trim().length() == 0) {
        return str;
    }

    StringTokenizer st = new StringTokenizer(str, " \t\n\r\f", true);
    ArrayList<String> originalTokens = new ArrayList<String>();
    ArrayList<String> upperCaseTokens = new ArrayList<String>();
    while (st.hasMoreTokens()) {
        String nextToken = st.nextToken();
        originalTokens.add(nextToken);
        upperCaseTokens.add(nextToken.toUpperCase());
    }

    int tokenIndex = upperCaseTokens.indexOf(token.toUpperCase());
    if (tokenIndex >= 0) {
        return tokensToString(originalTokens.subList(0, tokenIndex));
    } else {
        return str;
    }
}

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From source file:eionet.cr.web.action.admin.harvestscripts.HarvestScriptParser.java

/**
 *
 * @param str/* ww w . ja va  2s .com*/
 * @param token
 * @return
 */
private static String substringAfterToken(String str, String token) {

    if (str == null || str.trim().length() == 0 || token == null || token.trim().length() == 0) {
        return str;
    }

    StringTokenizer st = new StringTokenizer(str, " \t\n\r\f", true);
    ArrayList<String> originalTokens = new ArrayList<String>();
    ArrayList<String> upperCaseTokens = new ArrayList<String>();
    while (st.hasMoreTokens()) {
        String nextToken = st.nextToken();
        originalTokens.add(nextToken);
        upperCaseTokens.add(nextToken.toUpperCase());
    }

    int tokenIndex = upperCaseTokens.indexOf(token.toUpperCase());
    if (tokenIndex >= 0) {
        String afterToken = "";
        int tokensSize = originalTokens.size();
        if (tokenIndex < tokensSize - 1) {
            afterToken = tokensToString(originalTokens.subList(tokenIndex + 1, tokensSize));
        }

        return afterToken;
    } else {
        return str;
    }
}

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From source file:ch.unil.genescore.pathway.GeneSetLibrary.java

License:asdf

public static List<Gene> getRandomSample(ArrayList<Gene> items, int m) {
    for (int i = 0; i < m; i++) {
        int pos = i + rand.nextInt(items.size() - i);
        Gene tmp = items.get(pos);//from  ww  w.  java 2  s  .  c o  m
        items.set(pos, items.get(i));
        items.set(i, tmp);
    }
    return items.subList(0, m);
}

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From source file:graph.core.cli.AddCycEdgeCommand.java

@Override
protected void executeImpl() {
    DAGPortHandler dagHandler = (DAGPortHandler) handler;
    if (data.isEmpty()) {
        printErrorNoData();/*from  ww  w.ja v a 2  s.  co m*/
        return;
    }

    ArrayList<String> split = UtilityMethods.split(data, ' ');

    // Extract microtheory (if one exists)
    ArrayList<String> edgeMt = UtilityMethods.split(split.get(0), ':');
    String edgeStr = edgeMt.get(0);
    String microtheory = (edgeMt.size() > 1) ? StringUtils.join(edgeMt.subList(1, edgeMt.size()), ':') : null;

    Node creator = null;
    if (split.size() > 1) {
        try {
            creator = dagHandler.getDAG().findOrCreateNode(UtilityMethods.shrinkString(split.get(1), 1),
                    creator);
        } catch (Exception e) {
            print("-1|Invalid creator node.\n");
            return;
        }
    }

    try {
        Node[] nodes = dagHandler.getDAG().parseNodes(edgeStr, creator,
                dagHandler.get(DAGPortHandler.DYNAMICALLY_ADD_NODES).equals("true"), false);
        if (nodes == null) {
            print("-1|Problem parsing nodes.\n");
            return;
        }
        boolean[] flags = dagHandler.asBooleanArray(DAGPortHandler.EDGE_FLAGS);
        if (flags.length < 1)
            flags = new boolean[1];
        flags[0] = true;
        Edge edge = ((CycDAG) dagHandler.getDAG()).findOrCreateEdge(nodes, creator, microtheory, flags);
        dagHandler.getDAG().writeCommand("addedge " + data);

        if (edge instanceof ErrorEdge) {
            print("-1|" + ((ErrorEdge) edge).getError() + "\n");
        } else {
            DAGEdge dagEdge = (DAGEdge) edge;
            print(dagEdge.getID() + "|"
                    + edge.toString(!dagHandler.get(DAGPortHandler.PRETTY_RESULTS).equals("true")) + "|"
                    + dagEdge.getCreator() + "|" + dagEdge.getCreationDate() + "\n");
        }
    } catch (Exception e) {
        e.printStackTrace();
        print("-1|Problem parsing nodes.\n");
        return;
    }
}

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From source file:com.example.androidthings.doorbell.DoorbellEntryAdapter.java

@Override
protected void populateViewHolder(DoorbellEntryViewHolder viewHolder, DoorbellEntry model, int position) {
    // Display the timestamp
    CharSequence prettyTime = DateUtils.getRelativeDateTimeString(mApplicationContext, model.getTimestamp(),
            DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
    viewHolder.time.setText(prettyTime);

    // Display the image
    if (model.getImage() != null) {
        // Decode image data encoded by the Cloud Vision library
        byte[] imageBytes = Base64.decode(model.getImage(), Base64.NO_WRAP | Base64.URL_SAFE);
        Bitmap bitmap = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length);
        if (bitmap != null) {
            viewHolder.image.setImageBitmap(bitmap);
        } else {// www. j  a  va2  s. c  om
            Drawable placeholder = ContextCompat.getDrawable(mApplicationContext, R.drawable.ic_image);
            viewHolder.image.setImageDrawable(placeholder);
        }
    }

    // Display the metadata
    if (model.getAnnotations() != null) {
        ArrayList<String> keywords = new ArrayList<>(model.getAnnotations().keySet());

        int limit = Math.min(keywords.size(), 3);
        viewHolder.metadata.setText(TextUtils.join("\n", keywords.subList(0, limit)));
    } else {
        viewHolder.metadata.setText("no annotations yet");
    }
}

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