Example usage for java.util HashSet HashSet

Introduction

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

Prototype

public HashSet()

Source Link

Document

Constructs a new, empty set; the backing HashMap instance has default initial capacity (16) and load factor (0.75).

Usage

From source file:Main.java

public static <T> Set<T> union(Set<T> set1, Set<T> set2) {
    Set<T> set = new HashSet<>();
    set.addAll(set1);//from   w w  w.  j  av  a2s.  c o m
    set.addAll(set2);
    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);/*w ww . j a  va2s .c  om*/
    else {
        String[] arr = str.split(",");
        for (String s : arr)
            hs.add(s);
    }
    return hs;

}

From source file:Main.java

public static <T> Set<T> set() {
    return new HashSet<T>();
}

From source file:Main.java

@SafeVarargs
public static <T> Set<T> set(T... objects) {
    Set<T> set = new HashSet<>();
    for (T t : objects) {
        set.add(t);/* ww  w  .  ja  va2 s .  c  om*/
    }
    return set;
}

From source file:Main.java

public static <T> Set<T> asSet(T... elements) {
    Set<T> toReturn = new HashSet<>();
    toReturn.addAll(Arrays.asList(elements));
    return toReturn;
}

From source file:Main.java

public static <T> Set<T> asSet(T... array) {
    Set<T> result = new HashSet<>();
    result.addAll(Arrays.asList(array));
    return result;
}

From source file:Main.java

public static final <T> Set<T> setOf(final T... elements) {
    final Set<T> set = new HashSet<T>();

    for (final T t : elements) {
        set.add(t);/*from   www . ja  v a2s . c  om*/
    }

    return set;
}

From source file:Main.java

public static Set setWith(Object anElement) {
    Set asSet = new HashSet();
    asSet.add(anElement);
    return asSet;
}

From source file:Main.java

public static Set<Integer> closedRange(int start, int end) {
    Set<Integer> range = new HashSet<Integer>();
    for (int i = start; i <= end; i++) {
        range.add(i);/* w w  w  .  java 2  s.c o m*/
    }
    return range;
}

From source file:Main.java

private static Set<Class<?>> getWrapperTypes() {
    Set<Class<?>> ret = new HashSet<Class<?>>();
    ret.add(Boolean.class);
    ret.add(Character.class);
    ret.add(Byte.class);
    ret.add(Short.class);
    ret.add(Integer.class);
    ret.add(Long.class);
    ret.add(Float.class);
    ret.add(Double.class);
    ret.add(Void.class);
    ret.add(String.class);
    return ret;/*  w  ww .  j  a v a 2 s . c o  m*/
}