By candid | Posted :
Jun 24, 2015
| Updated :
Jun 24, 2015
Returns true if this list contains the specified element. More formally, returns true if and only if this list contains at least one element e such that (o==null ? e==null : o.equals(e)).
Program
package com.candidjava;
import java.util.LinkedList;
/**
*
* @author : mohan
* @description :The java.util.LinkedList.contains(Object o) method returns true
* if this list contains the specified element.
*/
public class LinkedListContains {
public static void main(String[] args) {
LinkedList list = new LinkedList();
list.add("anandh");
list.add("hari");
list.add("vinoth");
list.add("kamal");
System.out.println("LinkedList:" + list);
System.out.println("List contains 'kamal':" + list.contains("kamal"));
System.out.println("List contains 'mohan':" + list.contains("mohan"));
}
}
Output
LinkedList:[anandh, hari, vinoth, kamal]
List contains 'kamal':true
List contains 'mohan':false
Explanation
public boolean contains(Object o)
Returns true if this list contains the specified element. More formally, returns true if and only if this list contains at least one element e such that (o==null ? e==null : o.equals(e)).
Specified by:
contains in interface Collection<E>
Specified by:
contains in interface Deque<E>
Specified by:
contains in interface List<E>
Overrides:
contains in class AbstractCollection<E>
Parameters:
o - element whose presence in this list is to be tested