diff options
| author | bculkin2442 <bjculkin@mix.wvu.edu> | 2017-04-10 16:40:33 -0400 |
|---|---|---|
| committer | bculkin2442 <bjculkin@mix.wvu.edu> | 2017-04-10 16:40:33 -0400 |
| commit | 889fac2bdf993dc86f64a8893c0260fdcf848acb (patch) | |
| tree | 99ed08552efa86fdc5fdf4ddb8720d10e599fafe /BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java | |
| parent | 1656b02144446aeedebb3d1179e07ed99c01861c (diff) | |
Cleanup
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java b/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java index ebb9d8c..850598a 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java +++ b/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java @@ -11,7 +11,7 @@ import java.util.LinkedList; * @author Ben Culkin */ public class QueueStack<T> extends Stack<T> { - private Deque<T> backing; + private final Deque<T> backing; /** * Create a new empty stack queue. @@ -22,22 +22,20 @@ public class QueueStack<T> extends Stack<T> { } @Override - public void push(T elm) { + public void push(final T elm) { backing.add(elm); } @Override public T pop() { - if (backing.isEmpty()) - throw new StackUnderflowException(); + if (backing.isEmpty()) throw new StackUnderflowException(); return backing.remove(); } @Override public T top() { - if (backing.isEmpty()) - throw new StackUnderflowException(); + if (backing.isEmpty()) throw new StackUnderflowException(); return backing.peek(); } @@ -68,27 +66,22 @@ public class QueueStack<T> extends Stack<T> { final int prime = 31; int result = 1; - result = prime * result + ((backing == null) ? 0 : backing.hashCode()); + result = prime * result + (backing == null ? 0 : backing.hashCode()); return result; } @Override - public boolean equals(Object obj) { - if (this == obj) - return true; - if (obj == null) - return false; - if (!(obj instanceof QueueStack<?>)) - return false; + public boolean equals(final Object obj) { + if (this == obj) return true; + if (obj == null) return false; + if (!(obj instanceof QueueStack<?>)) return false; - QueueStack<?> other = (QueueStack<?>) obj; + final QueueStack<?> other = (QueueStack<?>) obj; if (backing == null) { - if (other.backing != null) - return false; - } else if (!backing.equals(other.backing)) - return false; + if (other.backing != null) return false; + } else if (!backing.equals(other.backing)) return false; return true; } |
