Example usage for java.util HashSet add

Introduction

In this page you can find the example usage for java.util HashSet add.

Prototype

public boolean add(E e)

Source Link

Document

Adds the specified element to this set if it is not already present.

Usage

From source file:Main.java

public static <T, V extends T> HashSet<T> createHashSet(V... args) {
    if (args == null || args.length == 0) {
        return new HashSet<T>();
    } else {//from   w w  w .  j av a2  s  . c  om
        HashSet<T> set = new HashSet<T>(args.length);

        for (V v : args) {
            set.add(v);
        }

        return set;
    }
}

From source file:Main.java

public static <ELEMENT> HashSet<ELEMENT> newHashSet(ELEMENT... elements) {
    final HashSet<ELEMENT> set = newHashSetSized(elements.length);
    for (ELEMENT element : elements) {
        set.add(element);
    }//from w w  w  .java2s .c om
    return set;
}

From source file:Main.java

public static ArrayList<Double> stringToDoubleListRemoved(String s, String delimeter, int[] fieldsToBeRemoved) {
    ArrayList<Double> ret = new ArrayList<Double>();

    ArrayList<Double> allFields = stringToDoubleList(s, delimeter);

    HashSet<Integer> toBeRemoved = new HashSet<Integer>();
    for (int i : fieldsToBeRemoved)
        toBeRemoved.add(i);

    for (int i = 0; i < allFields.size(); i++) {
        if (toBeRemoved.contains(i))
            continue;
        ret.add(allFields.get(i));//from   w w w. j a va  2 s .  c  om
    }
    return ret;
}

From source file:Main.java

/**
 * Set factory/*from  www. java 2 s .c o m*/
 */
public static <T> HashSet<T> hashSet(T... values) {
    if (values != null) {
        HashSet<T> set = new HashSet<T>(values.length);
        for (T v : values) {
            set.add(v);
        }
        return set;
    }
    return new HashSet<T>(0);
}

From source file:Main.java

public static <E, O extends E> HashSet<E> createHashSet(O... args) {
    if (args == null || args.length == 0) {
        return new HashSet<E>();
    }// www .  j av a  2  s.c  om

    HashSet<E> set = new HashSet<E>(args.length);
    for (O o : args) {
        set.add(o);
    }

    return set;
}

From source file:Main.java

/**
 * Creates <code>Set</code> of <code>TrustAnchor</code>s
 * containing single element (self signed test certificate).
 * @return Returns <code>Set</code> of <code>TrustAnchor</code>s
 *///from w  w  w .j av a2s  .  c o m
public static Set<TrustAnchor> getTrustAnchorSet() {
    TrustAnchor ta = getTrustAnchor();
    if (ta == null) {
        return null;
    }
    HashSet<TrustAnchor> set = new HashSet<TrustAnchor>();
    if (!set.add(ta)) {
        throw new RuntimeException("Could not create trust anchor set");
    }
    return set;
}

From source file:Main.java

public static HashSet<String> stringToHashSet(String str) {
    HashSet<String> hs = new HashSet<String>();
    if (str.equals("") || str == null)
        return null;
    if (!str.contains(","))
        hs.add(str);
    else {// ww w .  j a v  a 2 s .c o  m
        String[] arr = str.split(",");
        for (String s : arr)
            hs.add(s);
    }
    return hs;

}

From source file:Main.java

/**
 * Removes duplicate objects from the Collection.
 * @param p_collection a Collection/*from   w w  w.j  av  a  2  s  .  co m*/
 * @returns true if one or more duplicate objects were removed.
 */
public static boolean removeDuplicates(Collection p_collection) {
    if (p_collection == null) {
        return false;
    }
    HashSet set = new HashSet(p_collection.size());
    Iterator it = p_collection.iterator();
    while (it.hasNext()) {
        set.add(it.next());
    }
    if (set.size() != p_collection.size()) {
        p_collection.clear();
        p_collection.addAll(set);
        return true;
    }
    return false;
}

From source file:Main.java

public static HashSet<String> getExcludedTags(Context context) {
    String tags = PreferenceManager.getDefaultSharedPreferences(context).getString("excludeTagsInheritance",
            null);//from w  w w.  j a  v a2 s.c o  m

    if (tags == null)
        return null;

    HashSet<String> tagsSet = new HashSet<String>();
    for (String tag : tags.split(":")) {
        if (TextUtils.isEmpty(tag) == false)
            tagsSet.add(tag);
    }

    return tagsSet;
}

From source file:Main.java

@Nullable
public static Object valueFromString(String newValue, Object existingValue) throws IllegalArgumentException {
    if (existingValue instanceof Integer) {
        return Integer.parseInt(newValue);
    } else if (existingValue instanceof Long) {
        return Long.parseLong(newValue);
    } else if (existingValue instanceof Float) {
        return Float.parseFloat(newValue);
    } else if (existingValue instanceof Boolean) {
        return parseBoolean(newValue);
    } else if (existingValue instanceof String) {
        return newValue;
    } else if (existingValue instanceof Set) {
        try {/*from  w  w w.ja  v  a  2  s .co  m*/
            JSONArray obj = new JSONArray(newValue);
            int objN = obj.length();
            HashSet<String> set = new HashSet<String>(objN);
            for (int i = 0; i < objN; i++) {
                set.add(obj.getString(i));
            }
            return set;
        } catch (JSONException e) {
            throw new IllegalArgumentException(e);
        }
    } else {
        throw new IllegalArgumentException("Unsupported type: " + existingValue.getClass().getName());
    }
}