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

/**
 * Creates a new {@link Set} with the inferred type
 * using the given elements.//from  w w w. j  av  a 2 s .  co m
 */
public static <T> Set<T> set(T... vals) {
    HashSet<T> ret = new HashSet<T>();
    for (T v : vals)
        ret.add(v);
    return ret;
}

From source file:Main.java

/**
 * Convert the given array into a {@link Set}.  Changes to elements in the
 * set &quot;write through&quot; to the original array.
 *
 * @param array The array to convert or <code>null</code> for none.
 * @return Returns a new {@link Set} or <code>null</code> if
 * <code>null</code> was given for the array argument.
 *//* w w  w. jav  a2 s .  co  m*/
public static <T> Set<T> asSet(T[] array) {
    if (array == null)
        return null;
    final HashSet<T> set = new HashSet<T>();
    for (T element : array)
        set.add(element);
    return set;
}

From source file:Main.java

public static <T> Set<T> union(Collection<T> set1, Collection<T> set2) {
    HashSet<T> set = new HashSet<T>();

    for (T object : set1) {
        set.add(object);
    }/*from ww  w . ja  v  a2s . c  om*/
    for (T object : set2) {
        if (!set.contains(object)) {
            set.add(object);
        }
    }

    return set;
}

From source file:Main.java

public static ArrayList<Node> getNodesWithKey(Node parent, String key, String value, boolean all_of_them) {
    HashSet<String> values = new HashSet<String>();
    values.add(value);
    return getNodesWithKey(parent, key, values, all_of_them);
}

From source file:Main.java

public static <T> HashSet<T> asHashSet(T... elements) {
    HashSet<T> result = new HashSet<T>();
    for (T elem : elements) {
        result.add(elem);
    }//from   w w  w  .j  av a  2 s .com
    return result;
}

From source file:Main.java

public static <T> Set<T> newSet(T... theValues) {
    HashSet<T> retVal = new HashSet<T>();

    for (T t : theValues) {
        retVal.add(t);
    }//from   w  w  w .  j  a v  a2s  .  com
    return retVal;
}

From source file:Main.java

public static Node getNodeWithKey(Node parent, String key, String value) {
    HashSet<String> values = new HashSet<String>();
    values.add(value);
    ArrayList<Node> nodes = getNodesWithKey(parent, key, values, false);
    if (nodes.size() < 1)
        return null;
    return nodes.get(0);
}

From source file:Main.java

public static HashSet<String> stringSet(String... strings) {
    HashSet<String> set = new HashSet<String>();
    for (String s : strings)
        set.add(s);
    return set;//from  w ww . j a  v a2 s .  co  m
}

From source file:Main.java

public static List<Node> getNodesWithKey(Node parent, String key, String value, boolean all_of_them) {
    HashSet<String> values = new HashSet<>();
    values.add(value);
    return getNodesWithKey(parent, key, values, all_of_them);
}

From source file:Main.java

/**
 * Creates a new list with the given elements
 * @param values// ww  w.ja v  a 2  s.c om
 * @return
 */
@SafeVarargs
public static <T> Set<T> newSet(T... values) {
    HashSet<T> set = new HashSet<>(values.length);
    for (T element : values) {
        set.add(element);
    }

    return set;
}