If contain a certain element

boolean contains(Object o)
Returns true if this list contains the specified element.

  import java.util.LinkedList;

public class Main{
    public static void main(String args[]) {

        LinkedList<String> ll = new LinkedList<String>();


        ll.add("B");
        ll.add("ja v a2s.com");
        ll.addLast("E");
        ll.add("F");


        boolean b = ll.contains("ja v a2s.com");
        System.out.println(b);
    }
}

The output: 


true
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LinkedList:
  1. LinkedList class
  2. Create LinkedList
  3. Add element to LinkedList
  4. Remove all elements from LinkedList
  5. Shallow copy of a LinkedList
  6. If contain a certain element
  7. Get iterator from LinkedList
  8. Peek the element
  9. Get the element from LinkedList
  10. Get the index of an element
  11. Poll, pop and push element to a LinkedList
  12. Remove element from a LinkedList
  13. Replace the element at the position
  14. Get the size of a LinkedList
  15. Convert LinkedList to Array
  16. Storing User-Defined Classes in Collections