The Java.util.LinkedHashSet.contains() method is used to check whether a specific element is present in the LinkedHashSet or not. So basically it is used to check if a Set contains any particular element. The contains a method of the LinkedHashSet class returns true if the specified element is found in the LinkedHashSet object.
Example:
Given List: [1, 2, 3, 4] Input : FirstSearch = 1, SecondSearch = 6 Output: True False
Syntax:
Hash_Set.contains(Object element)
Return Type: If the element found in the then it returns true, else false.
Parameters: The parameter element is of the type of LinkedHashSet. This is the element that needs to be tested if it is present in the set or not.
Example:
// Checking if element exists in LinkedHashSet in Java import java.util.LinkedHashSet;
public class LinkedHashSetContainsExample {
public static void main(String[] args)
{
LinkedHashSet<String> lhSetColors
= new LinkedHashSet<String>();
lhSetColors.add( "red" );
lhSetColors.add( "green" );
lhSetColors.add( "blue" );
/*
* To check if the LinkedHashSet contains the
* element, use the contains method.
*/
// this will return true as the "red" element exists
System.out.println(lhSetColors.contains( "red" ));
// this will return true as the "white" element does
// not exists
System.out.println(lhSetColors.contains( "white" ));
}
} |
true false