extends Queue<
* Inserts the specified element into the queue represented by this deque
* (in other words, at the tail of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
- * true upon success and throwing an
- * IllegalStateException if no space is currently available.
+ * {@code true} upon success and throwing an
+ * {@code IllegalStateException} if no space is currently available.
* When using a capacity-restricted deque, it is generally preferable to
* use {@link #offer(Object) offer}.
*
* This method is equivalent to {@link #addLast}.
*
* @param e the element to add
- * @return true (as specified by {@link Collection#add})
+ * @return {@code true} (as specified by {@link Collection#add})
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
@@ -375,7 +375,7 @@ public interface Deque extends Queue<
* Inserts the specified element into the queue represented by this deque
* (in other words, at the tail of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
- * true upon success and false if no space is currently
+ * {@code true} upon success and {@code false} if no space is currently
* available. When using a capacity-restricted deque, this method is
* generally preferable to the {@link #add} method, which can fail to
* insert an element only by throwing an exception.
@@ -383,8 +383,8 @@ public interface Deque extends Queue<
* This method is equivalent to {@link #offerLast}.
*
* @param e the element to add
- * @return true if the element was added to this deque, else
- * false
+ * @return {@code true} if the element was added to this deque, else
+ * {@code false}
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
@@ -410,11 +410,11 @@ public interface Deque extends Queue<
/**
* Retrieves and removes the head of the queue represented by this deque
* (in other words, the first element of this deque), or returns
- * null if this deque is empty.
+ * {@code null} if this deque is empty.
*
* This method is equivalent to {@link #pollFirst()}.
*
- * @return the first element of this deque, or null if
+ * @return the first element of this deque, or {@code null} if
* this deque is empty
*/
E poll();
@@ -435,12 +435,12 @@ public interface Deque extends Queue<
/**
* Retrieves, but does not remove, the head of the queue represented by
* this deque (in other words, the first element of this deque), or
- * returns null if this deque is empty.
+ * returns {@code null} if this deque is empty.
*
* This method is equivalent to {@link #peekFirst()}.
*
* @return the head of the queue represented by this deque, or
- * null if this deque is empty
+ * {@code null} if this deque is empty
*/
E peek();
@@ -451,8 +451,8 @@ public interface Deque extends Queue<
* Pushes an element onto the stack represented by this deque (in other
* words, at the head of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
- * true upon success and throwing an
- * IllegalStateException if no space is currently available.
+ * {@code true} upon success and throwing an
+ * {@code IllegalStateException} if no space is currently available.
*
* This method is equivalent to {@link #addFirst}.
*
@@ -486,16 +486,16 @@ public interface Deque extends Queue<
/**
* Removes the first occurrence of the specified element from this deque.
* If the deque does not contain the element, it is unchanged.
- * More formally, removes the first element e such that
+ * More formally, removes the first element {@code e} such that
* (o==null ? e==null : o.equals(e))
* (if such an element exists).
- * Returns true if this deque contained the specified element
+ * Returns {@code true} if this deque contained the specified element
* (or equivalently, if this deque changed as a result of the call).
*
* This method is equivalent to {@link #removeFirstOccurrence}.
*
* @param o element to be removed from this deque, if present
- * @return true if an element was removed as a result of this call
+ * @return {@code true} if an element was removed as a result of this call
* @throws ClassCastException if the class of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this
@@ -504,13 +504,13 @@ public interface Deque extends Queue<
boolean remove(Object o);
/**
- * Returns true if this deque contains the specified element.
- * More formally, returns true if and only if this deque contains
- * at least one element e such that
+ * Returns {@code true} if this deque contains the specified element.
+ * More formally, returns {@code true} if and only if this deque contains
+ * at least one element {@code e} such that
* (o==null ? e==null : o.equals(e)).
*
* @param o element whose presence in this deque is to be tested
- * @return true if this deque contains the specified element
+ * @return {@code true} if this deque contains the specified element
* @throws ClassCastException if the type of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this