Java Collections Java Java API
java.util.ArrayDeque
public boolean isEmpty()
Returns true if this deque contains no elements.
true
package com.logicbig.example.arraydeque;import java.util.ArrayDeque;import java.util.List;public class IsEmptyExample { public static void main(String... args) { ArrayDeque<Integer> ad = new ArrayDeque<>(List.of(3, 8, 5, 7)); boolean empty = ad.isEmpty(); System.out.println(empty); }}
false