The isEmpty() method of AbstractSequentialList in Java is used to check whether this AbstractSequentialList is empty or not. It returns an boolean value stating the same.
Syntax:
public boolean isEmpty()
Parameters: This function has no parameters.
Returns: The method returns an boolean value which states that this instance of the AbstractSequentialList is empty or not.
Below examples illustrates the AbstractSequentialList.isEmpty() method:
Example 1:
// Java code to demonstrate the working of // isEmpty() method in AbstractSequentialList import java.util.*; public class GFG { public static void main(String[] args) { // creating an AbstractSequentialList AbstractSequentialList<Integer> arr = new LinkedList<Integer>(); // using add() to initialize values // [1, 2, 3, 4] arr.add( 1 ); arr.add( 2 ); arr.add( 3 ); arr.add( 4 ); // print AbstractSequentialList System.out.println( "AbstractSequentialList: " + arr); // Check if AbstractSequentialList is empty // using isEmpty() value System.out.println( "Is AbstractSequentialList empty? " + arr.isEmpty()); } } |
AbstractSequentialList: [1, 2, 3, 4] Is AbstractSequentialList empty? false
Example 2:
// Java code to demonstrate the working of // isEmpty() method in AbstractSequentialList import java.util.*; public class GFG { public static void main(String[] args) { // creating an AbstractSequentialList AbstractSequentialList<String> arr = new LinkedList<String>(); // print AbstractSequentialList System.out.println( "AbstractSequentialList: " + arr); // Check if AbstractSequentialList is empty // using isEmpty() value System.out.println( "Is AbstractSequentialList empty? " + arr.isEmpty()); } } |
AbstractSequentialList: [] Is AbstractSequentialList empty? true
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