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-rw-r--r--OLD/csci1913/Java/lab10_strap012.java148
1 files changed, 0 insertions, 148 deletions
diff --git a/OLD/csci1913/Java/lab10_strap012.java b/OLD/csci1913/Java/lab10_strap012.java
deleted file mode 100644
index 06c0dfa..0000000
--- a/OLD/csci1913/Java/lab10_strap012.java
+++ /dev/null
@@ -1,148 +0,0 @@
-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;
- }
- }
- private Node head;
- public AssociationList() {
- head = new Node(null, null, null);
- }
- public void delete(Key key) {
- Node left = head;
- Node right = head.next;
- while (right!=null) {
- if (isEqual(right.key, key)) {
- left.next=right.next;
- break;
- } else {
- left=right; right=right.next;
- }
- }
-
- }
- public Value get(Key key) {
- Node where=head.next;
- while (where!=null) {
- if (isEqual(where.key,key)) {
- return where.value;
- } else {
- where=where.next;
- }
- } //No matching key found
- throw new IllegalArgumentException();
- }
- 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) {
- Node where = head.next;
- while (where != null) {
- if (isEqual(where.key, key)) {
- return true;
- } else {
- where = where.next;
- }
- } // No matching key found
- return false;
- }
- public void put(Key key, Value value) {
- Node where=head.next;
- boolean found=false;
- while (where!=null){
- if(isEqual(key, where.key)) {
- where.value=value;
- found=true;
- break;
- } else {
- where=where.next;
- }
- } //End of while
- if (!found) {
- Node temp=head.next;
- head.next= new Node(key, value, temp);
- }
- }
-}
-
-//
-// 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.
- }
- }
-} \ No newline at end of file