PriorityBlockingQueue método restante de la capacidad() en Java

El método de capacidad restante de PriorityBlockingQueue se usa para verificar cuántos elementos más se pueden insertar en esta cola. Pero dado que PriorityBlockingQueue no tiene límites, este método siempre devuelve Integer.MAX_VALUE porque PriorityBlockingQueue no tiene restricciones de capacidad.
Sintaxis: 
 

public int remainingCapacity()

Valor de retorno: Integer.MAX_VALUE siempre Los siguientes
programas ilustran el método de capacidad restante() en PriorityBlockingQueue:
Programa 1:
 

// Java Program Demonstrate remainingCapacity()
// method of PriorityBlockingQueue
 
import java.util.concurrent.PriorityBlockingQueue;
 
public class GFG {
    public static void main(String[] args)
    {
        // define capacity of PriorityBlockingQueue
        int capacityOfQueue = 7;
 
        // create object of PriorityBlockingQueue
        PriorityBlockingQueue<Integer> pbq
            = new PriorityBlockingQueue<Integer>(capacityOfQueue);
 
        // Add element to PriorityBlockingQueue
        pbq.put(1);
        pbq.put(2);
        pbq.put(3);
        pbq.put(4);
 
        // find remaining Capacity  of pbq
        // using remainingCapacity() method
 
        // The initial capacity was set to 7
        // by passing as parameter in constructor
        // But this method will return Integer.MAX_VALUE
        int remainingCapacity = pbq.remainingCapacity();
 
        // print result
        System.out.println("Queue:  " + pbq);
        System.out.println("Remaining Capacity: " + remainingCapacity);
    }
}

Queue:  [1, 2, 3, 4]
Remaining Capacity: 2147483647

Programa 2: Para demostrar la capacidad restante() usando String
 

// Java Program Demonstrate remainingCapacity()
// method of PriorityBlockingQueue
 
import java.util.concurrent.PriorityBlockingQueue;
 
public class GFG {
    public static void main(String[] args)
    {
 
        // create object of PriorityBlockingQueue
        PriorityBlockingQueue<String> pbq
            = new PriorityBlockingQueue<String>();
 
        // Add element to PriorityBlockingQueue
        pbq.put("Geeks");
        pbq.put("forGeeks");
        pbq.put("A Computer");
        pbq.put("Portal");
 
        // find remaining Capacity  of pbq
        // using remainingCapacity() method
        int remainingCapacity = pbq.remainingCapacity();
 
        // print result
        System.out.println("Queue:  " + pbq);
        System.out.println("Remaining Capacity: " + remainingCapacity);
    }
}

Queue:  [A Computer, Portal, Geeks, forGeeks]
Remaining Capacity: 2147483647