Set: add(String e) : Set « java.util « Java by API

1.	com.sun.image.codec.jpeg
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131.	org.eclipse.swt
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133.	org.eclipse.swt.custom
134.	org.eclipse.swt.dnd
135.	org.eclipse.swt.events
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142.	org.junit
143.	org.w3c.dom
144.	org.xml.sax
145.	org.xml.sax.helpers
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Java by API » java.util » Set

Set: add(String e)


 



import java.util.HashSet;

import java.util.Set;



public class Main {



  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 {

      System.out.println("addition failed");

    }

  }

}

Related examples in the same category

1.	Set: addAll(Collection c)
2.	Set: clear()
3.	Set: clone()
4.	Set: contains(Object o)
5.	Set: containsAll(Collection c)
6.	Set: equals(Object o)
7.	Set: isEmpty()
8.	Set: iterator()
9.	Set: remove(Object o)
10.	Set: removeAll(Collection c)
11.	Set: retainAll(Collection c)
12.	Set: size()
13.	Set: toArray()
14.	Set: toArray(String[] a)

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