Example usage for java.util Set add

Introduction

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

Prototype

boolean add(E e);

Source Link

Document

Adds the specified element to this set if it is not already present (optional operation).

Usage

From source file:MainClass.java

public static void main(String[] a) {
    Set s = new HashSet();
    s.add("A");
    s.add("B");//from w w w  . j ava2  s .c  o m
    s.add("C");
    s.add("D");
    s.add("E");
    s.add("F");
    s.add("H");
    Collections.synchronizedSet(s);
}

From source file:MainClass.java

public static void main(String[] a) {
    Set set = new HashSet();
    set.add("Hello");
    if (set.add("Hello")) {
        System.out.println("addition successful");
    } else {//w w w .ja v a  2s.  c om
        System.out.println("addition failed");
    }

}

From source file:MainClass.java

public static void main(String[] a) {
    Set s = new HashSet();
    s.add("A");
    s.add("B");//from w w w  .j  a va  2s .co m
    s.add("C");
    s.add("D");
    s.add("E");
    s.add("F");
    s.add("H");

    Collections.unmodifiableSet(s);

    s = Collections.unmodifiableSet(s);

    s.clear();
}

From source file:Main.java

public static void main(String[] args) {
    Set<String> names = new HashSet<>();
    names.add("XML");
    names.add("Java");

    Stream<String> sequentialStream = names.stream();
    sequentialStream.forEach(System.out::println);

    Stream<String> parallelStream = names.parallelStream();
    parallelStream.forEach(System.out::println);
}

From source file:Main.java

public static void main(String[] a) {
    Set<String> set = new HashSet<String>();
    set.add("Hello");
    if (set.add("Hello")) {
        System.out.println("addition successful");
    } else {/*w  w w . j  a  v a2 s.co m*/
        System.out.println("addition failed");
    }
}

From source file:Main.java

public static void main(String[] args) {

    Set<String> s1 = new LinkedHashSet<>();
    s1.add("A");
    s1.add("B");/*ww w  .  j  a  v  a  2s . c o m*/
    s1.add("C");
    s1.add("D");
    System.out.println("LinkedHashSet: " + s1);

}

From source file:MainClass.java

public static void main(String[] a) {
    String elements[] = { "A", "B", "C", "D", "E" };
    Set set = new HashSet(Arrays.asList(elements));

    set.add("Z");

    System.out.println(set);//  www  .j a v  a2s . c  o  m
}

From source file:Main.java

public static void main(String[] args) {
    Set<Object> set = new HashSet<Object>();
    set.add("A");
    set.add(new Long(10));
    set.add(new Date());

    List<Object> list = new ArrayList<Object>(set);
    for (int i = 0; i < list.size(); i++) {
        Object o = list.get(i);/* w  w  w  .j a v  a 2  s .  co m*/
        System.out.println("Object = " + o);
    }
}

From source file:Main.java

public static void main(String[] args) {
    Set<String> set = new TreeSet<String>();
    set.add("Z");
    set.add("A");
    set.add("F");
    set.add("B");
    set.add("H");
    set.add("X");
    set.add("N");

    for (String item : set) {
        System.out.print(item + " ");
    }/* www  .  j a  va  2 s .  c  o m*/
}

From source file:Main.java

public static void main(String[] args) {
    Set<Object> set = new HashSet<Object>();
    set.add("A");
    set.add(new Long(10));
    set.add(new Date());

    List<Object> list = new ArrayList<Object>(set);
    Object[] objects = list.toArray();

    for (int i = 0; i < objects.length; i++) {
        Object object = objects[i];
        System.out.println("Object = " + object);
    }/*from w  w w . j  a  va  2 s. com*/
}