Java Set.contains(Object o)

Syntax

Set.contains(Object o) has the following syntax.

boolean contains(Object o)

Example

In the following code shows how to use Set.contains(Object o) method.


import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/*from   w w  w  .j a va2 s.  c  om*/
public class Main {

  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.contains("A"));
  }
}