Java Utility Library

Java LinkedList - contains() Method



The java.util.LinkedList.contains() method is used to check whether the list contains the specified element or not. It returns true if the list contains the specified element, else returns false.

Syntax

public boolean contains(Object obj)

Parameters

obj Specify element whose presence in the list need to be tested.

Return Value

Returns true if the list contains the specified element, else returns false.

Exception

NA

Example:

In the example below, the java.util.LinkedList.contains() method is used to check the presence of specified element in the given list.

import java.util.*;

public class MyClass {
  public static void main(String[] args) {
    //creating a linkedlist
    LinkedList<Integer> MyList = new LinkedList<Integer>();

    //populating linkedlist
    MyList.add(10);
    MyList.add(20);
    MyList.add(30);

    //checking the presence of elements
    for(int i = 5; i <= 20; i += 5) {
      if(MyList.contains(i))
        System.out.println(i +" is present in MyList.");
      else
        System.out.println(i +" is NOT present in MyList.");
    }       
  }
}

The output of the above code will be:

5 is NOT present in MyList.
10 is present in MyList.
15 is NOT present in MyList.
20 is present in MyList.

❮ Java.util - LinkedList