Java Collection Tutorial - Java Deque.size()

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Syntax

Deque.size() has the following syntax.

int size()

Example

In the following code shows how to use Deque.size() method.

//from w  w w  .j av a2 s.  co m
import java.util.ArrayDeque;
import java.util.Deque;

public class Main {
   public static void main(String[] args) {
      
      
      Deque<Integer>  deque = new ArrayDeque<Integer> (8);

      
      deque.add(15);
      deque.add(20);
      deque.add(25);
      deque.add(22);

      System.out.println(deque);

      // this will print the size of this deque
      int retval = deque.size();
      System.out.println("Size of deque = " + retval); 
   }
}

The code above generates the following result.

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