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 void main(String args[]) {
    HashSet<String> hs = new HashSet<String>(20);

    hs.add("java2s.com");
    hs.add("j a v a2s.com");

    System.out.println(hs);//from   www.  ja  va  2  s.c o m
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Integer> hSet = new HashSet<Integer>();

    hSet.add(new Integer("1"));
    hSet.add(new Integer("2"));
    hSet.add(new Integer("3"));

    System.out.println(hSet.contains(new Integer("3")));
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Long> hashSet = new HashSet<Long>();
    hashSet.add(new Long("1111111111"));
    hashSet.add(new Long("2222222222"));
    hashSet.add(new Long("3333333333"));
    hashSet.add(new Long("4444444444"));
    hashSet.add(new Long("5555555555"));

    Object obj = Collections.max(hashSet);
    System.out.println(obj);/*from www . java 2 s  .c  o  m*/
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Integer> hSet = new HashSet<Integer>();

    hSet.add(new Integer("1"));
    hSet.add(new Integer("2"));
    hSet.add(new Integer("3"));
    System.out.println("HashSet contains.." + hSet);

}

From source file:Main.java

public static void main(String args[]) {
    HashSet<String> hs = new HashSet<String>(20, 0.75F);

    hs.add("java2s.com");
    hs.add("j a v a2s.com");

    System.out.println(hs);/*from  w  w w .j  av  a  2s  .  c  o  m*/
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Long> hashSet = new HashSet<Long>();

    hashSet.add(new Long("9"));
    hashSet.add(new Long("4"));
    hashSet.add(new Long("2"));
    hashSet.add(new Long("2"));
    hashSet.add(new Long("3"));

    Object obj = Collections.min(hashSet);
    System.out.println("Minimum Element of Java HashSet is : " + obj);
}

From source file:HashSetDemo.java

public static void main(String args[]) {

    HashSet<String> hs = new HashSet<String>();

    hs.add("B");
    hs.add("A");/*from   w  w  w.j  a  v a2  s.  co m*/
    hs.add("D");
    hs.add("E");
    hs.add("C");
    hs.add("F");

    System.out.println(hs);
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Long> hashSet = new HashSet<Long>();

    hashSet.add(new Long("9"));
    hashSet.add(new Long("4"));
    hashSet.add(new Long("2"));
    hashSet.add(new Long("2"));
    hashSet.add(new Long("3"));

    Object obj = Collections.min(hashSet);
    System.out.println("Minimum Element of HashSet is : " + obj);
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Long> hashSet = new HashSet<Long>();
    hashSet.add(new Long("1111111111"));
    hashSet.add(new Long("2222222222"));
    hashSet.add(new Long("3333333333"));
    hashSet.add(new Long("4444444444"));
    hashSet.add(new Long("5555555555"));

    Object obj = Collections.max(hashSet);
    //Object obj = Collections.min(hashSet);
    System.out.println(obj);// www .  ja  va2  s  . c  o  m
}

From source file:Main.java

public static void main(String[] args) {
    HashSet<Integer> hSet = new HashSet<Integer>();

    hSet.add(new Integer("1"));
    hSet.add(new Integer("2"));
    hSet.add(new Integer("3"));

    Object[] objArray = hSet.toArray();

    for (Object obj : objArray)
        System.out.println(obj);/*from w w  w.j  a  v a2  s. c o  m*/
}