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| -rw-r--r-- | csci1913/Java/lab10_strap012.java | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/csci1913/Java/lab10_strap012.java b/csci1913/Java/lab10_strap012.java new file mode 100644 index 0000000..c8fea79 --- /dev/null +++ b/csci1913/Java/lab10_strap012.java @@ -0,0 +1,109 @@ +class AssociationList<Key, Value> { + private class Node { + private Key key; + private Value value; + private Node next; + private Node(Key k, Value v, Node n) { + key=k; value=v; next=n; + } + } + public AssociationList() { + Node head = new Node("HEAD", "HEAD", null); + } + public void delete(Key key) { + + } + public Value get(Key key) { + + } + private boolean isEqual(Key leftKey, Key rightKey) { + if (leftKey == null || rightKey == null) { + return leftKey == rightKey; + } else { + return leftkey.equals(rightKey); + } + } + public boolean isIn(Key key) { + + } + public void put(Key key, Value value) { + + } + + +} + +// +// Tests for CSci 1913 Lab 10 +// James Moen +// 08 Apr 19 +// +// The TRY-CATCH statements catch exceptions thrown by ASSOCIATION LIST's +// methods, so that the program can continue to run even if a method fails. +// +// Each test has a comment that shows what it should print and how many points +// it is worth, for a total of 40 points. + +// HOGWARTS. The Hogwarts dating service. + +class Hogwarts { + + // MAIN. Make an instance of ASSOCIATION LIST and test it. + + public static void main(String[] args) { + AssociationList<String, String> list = new AssociationList<String, String>(); + + System.out.println(list.isIn(null)); // false 2 points. + + try { + System.out.println(list.get(null)); + } catch (IllegalArgumentException ignore) { + System.out.println("No null"); // No null 2 points. + } + + list.put(null, "Wormtail"); + list.put("Ron", "Lavender"); + list.put("Voldemort", null); + list.put("Dean", "Ginny"); + + System.out.println(list.isIn("Dean")); // true 2 points. + System.out.println(list.isIn("Ginny")); // false 2 points. + System.out.println(list.isIn("Ron")); // true 2 points. + System.out.println(list.isIn("Voldemort")); // true 2 points. + System.out.println(list.isIn(null)); // true 2 points. + System.out.println(list.isIn("Joanne")); // false 2 points. + + System.out.println(list.get("Ron")); // Lavender 2 points. + System.out.println(list.get("Dean")); // Ginny 2 points. + System.out.println(list.get("Voldemort")); // null 2 points. + System.out.println(list.get(null)); // Wormtail 2 points. + + try { + System.out.println(list.get("Joanne")); + } catch (IllegalArgumentException ignore) { + System.out.println("No Joanne"); // No Joanne 2 points. + } + + list.delete(null); + + System.out.println(list.isIn(null)); // false 2 points. + + list.put(null, null); + list.put("Harry", "Ginny"); + list.put("Ron", "Hermione"); + + System.out.println(list.isIn(null)); // true 2 points. + System.out.println(list.get(null)); // null 2 points. + System.out.println(list.get("Harry")); // Ginny 2 points. + System.out.println(list.get("Dean")); // Ginny 2 points. + System.out.println(list.get("Ron")); // Hermione 2 points. + + list.delete("Dean"); + + try { + System.out.println(list.get("Dean")); + } catch (IllegalArgumentException ignore) { + System.out.println("No Dean"); // No Dean 2 points. + } + } +}
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