Example usage for java.util Set size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of elements in this set (its cardinality).

Usage

From source file:Main.java

public static void main(final String[] args) throws Exception {
    Random random = new Random();
    Set<Integer> intSet = new HashSet<>();
    while (intSet.size() < 6) {
        intSet.add(random.nextInt(49) + 1);
    }/*www  . ja  v a 2 s.  c om*/
    Integer[] ints = intSet.toArray(new Integer[intSet.size()]);
    System.out.println(Arrays.toString(ints));
}

From source file:Main.java

public static void main(String[] args) {
    Random random = new Random();
    Set<Integer> set = new HashSet<Integer>();
    while (set.size() < 5) {
        set.add(random.nextInt());//from w ww .  ja  v a 2  s.  c  o  m
    }
    List<Integer> result = new ArrayList<Integer>(set);
    System.out.println(result);
}

From source file:Main.java

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

    System.out.println(set.size());
}

From source file:Main.java

public static void main(String[] args) {
    String elements[] = { "M", "N", "O", "P", "Q" };
    Set set = new HashSet(Arrays.asList(elements));

    String[] strObj = new String[set.size()];

    strObj = (String[]) set.toArray(strObj);

    for (int i = 0; i < strObj.length; i++) {
        System.out.println(strObj[i]);
    }//  ww w. j a v  a2s  .  c o  m
    System.out.println(set);
}

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));

    String[] strObj = new String[set.size()];

    strObj = (String[]) set.toArray(strObj);

    for (int i = 0; i < strObj.length; i++) {
        System.out.println(strObj[i]);
    }/*from   w  ww . j  av  a 2s  . com*/

    System.out.println(set);
}

From source file:Main.java

public static void main(String[] args) {
    Set<Integer> intSet = new LinkedHashSet<Integer>();
    Random r = new Random();
    while (intSet.size() <= 6) {
        intSet.add(r.nextInt(49));//  w w w.  ja  v  a2 s.  c o  m
    }
    System.out.println(intSet);
}

From source file:Main.java

public static void main(String[] args) {
    Map<String, Charset> map = Charset.availableCharsets();
    Set<String> keys = map.keySet();
    System.out.println("Available  Character Set  Count:   " + keys.size());

    for (String charsetName : keys) {
        System.out.println(charsetName);
    }/*from  w w w . j  a v  a2  s .  co  m*/
}

From source file:FindDups.java

public static void main(String[] args) {
    Set<String> s = new HashSet<String>();
    for (String a : args)
        s.add(a);/*from  w  w w  . j ava 2 s . c o m*/
    System.out.println(s.size() + " distinct words: " + s);
}

From source file:Main.java

public static void main(String[] args) {
    // A string array with duplicate values
    String[] data = { "A", "C", "B", "D", "A", "B", "E", "D", "B", "C" };
    System.out.println("Original array         : " + Arrays.toString(data));

    List<String> list = Arrays.asList(data);
    Set<String> set = new HashSet<String>(list);

    System.out.print("Remove duplicate result: ");

    String[] result = new String[set.size()];
    set.toArray(result);/* w w  w.  j a  v  a2 s  .  c  o m*/
    for (String s : result) {
        System.out.print(s + ", ");
    }
}

From source file:FindDups.java

public static void main(String[] args) {
    Set<String> s = new HashSet<String>();
    for (String a : args)
        if (!s.add(a))
            System.out.println("Duplicate detected: " + a);

    System.out.println(s.size() + " distinct words: " + s);
}