diff options
| author | bjculkin <bjculkin@mix.wvu.edu> | 2017-03-17 19:46:55 -0400 |
|---|---|---|
| committer | bjculkin <bjculkin@mix.wvu.edu> | 2017-03-17 19:46:55 -0400 |
| commit | 338b2b16b6934d27dc4cd536fb5527b71985de4f (patch) | |
| tree | 6dc7e85370507d22150cd7cef353a033b50a71d7 /BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java | |
| parent | 5832ef0286430d04484b70d49c73e081a80ec9c7 (diff) | |
Add more toString/hashCode/equals
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 | 41 |
1 files changed, 36 insertions, 5 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 a2c2f32..005c90e 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java +++ b/BJC-Utils2/src/main/java/bjc/utils/esodata/QueueStack.java @@ -29,14 +29,14 @@ public class QueueStack<T> extends Stack<T> { @Override public T pop() { if(backing.isEmpty()) throw new StackUnderflowException(); - + return backing.remove(); } @Override public T top() { if(backing.isEmpty()) throw new StackUnderflowException(); - + return backing.peek(); } @@ -49,15 +49,46 @@ public class QueueStack<T> extends Stack<T> { public boolean empty() { return backing.size() == 0; } - + @Override public String toString() { - return backing.toString(); + StringBuilder builder = new StringBuilder(); + + builder.append("QueueStack [backing="); + builder.append(backing); + builder.append("]"); + + return builder.toString(); } - + @SuppressWarnings("unchecked") @Override public T[] toArray() { return (T[]) backing.toArray(); } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + + 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(getClass() != obj.getClass()) return false; + + QueueStack<?> other = (QueueStack<?>) obj; + + if(backing == null) { + if(other.backing != null) return false; + } else if(!backing.equals(other.backing)) return false; + + return true; + } } |
