From 87d63321677ab3001d8c71a0437862f445afb2a1 Mon Sep 17 00:00:00 2001
From: Caleb Sander <caleb.sander@gmail.com>
Date: Tue, 25 Feb 2020 18:07:45 -0800
Subject: [PATCH] Fix return value from ISet.add()
---
src/edu/caltech/cs2/interfaces/ISet.java | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
diff --git a/src/edu/caltech/cs2/interfaces/ISet.java b/src/edu/caltech/cs2/interfaces/ISet.java
index c99dcde..61e179e 100644
--- a/src/edu/caltech/cs2/interfaces/ISet.java
+++ b/src/edu/caltech/cs2/interfaces/ISet.java
@@ -79,7 +79,7 @@ public class ISet<E> implements Iterable<E> {
* element
*/
public boolean add(E e) {
- return this.internalDictionary.put(e, new Object()) != null;
+ return this.internalDictionary.put(e, new Object()) == null;
}
@@ -100,17 +100,6 @@ public class ISet<E> implements Iterable<E> {
return this.internalDictionary.remove(e) != null;
}
- /**
- * Removes all of the elements from this set (optional operation).
- * The set will be empty after this call returns.
- *
- * @throws UnsupportedOperationException if the {@code clear} method
- * is not supported by this set
- */
- public void clear() {
- throw new UnsupportedOperationException();
- }
-
@Override
public String toString() {
StringBuilder b = new StringBuilder();
--
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