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Update for 30-03-22 12:15

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Tyler Perkins 2022-03-30 12:15:01 -04:00
parent 655e235e62
commit 6f79c61ae4
1 changed files with 32 additions and 14 deletions
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42
tech/Java.wiki
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@ -5,17 +5,20 @@ can run on almost anything.
== Data structures == == Data structures ==
| C++ DS | Java DS | Notes | | C++ DS | Java DS | Notes |
| Vector | ArrayList | Threadsafe | | Vector | ArrayList | Threadsafe |
| Vector | Vector | Not threadsafe; deprecated | | Vector | Vector | Not threadsafe; deprecated |
| Deque | Deque | | | Deque | Deque | |
| List | ArrayList | Both linked lists | | Stack | Stack | Stack implementation using a vector |
| Map | TreeMap | Red-black tree | | List | ArrayList | Both linked lists; Singly linked |
| Set | TreeSet | Red-black tree | | List | LinkedList | Doubly linked list |
| unordered_set | Hashset | Hashtable | | Map | TreeMap | Red-black tree |
| unordered_map | Hashmap | Non blocking but race conditions can occour | | Set | TreeSet | Red-black tree |
| unordered_map | Hashtable | Threadsafe but blocking; deprecated | | unordered_set | Hashset | Hashtable |
| unordered_map | Hashmap | Non blocking but race conditions can occour |
| unordered_map | Hashtable | Threadsafe but blocking; deprecated |
| N/A | LinkedHashMap | LRUCache; Hash table that knows order of elements inserted/accessed |
| N/A | LinkedHashSet | LRUCache; Hash set that knows order of elements inserted/accessed |
@ -28,10 +31,25 @@ can run on almost anything.
public MyClass(){ public MyClass(){
//constructor code here //constructor code here
} }
}
}}}
=== Deconstructor/Finalize ===
finalize provides security and is called by the garbage collector. We can call
it directly to clean up the object. All exceptions thrown by it are ignored by
the garbage collector.
{{{
public class MyClass{
public MyClass(){
//constructor code here
}
protected void finalize(){
//clean up code here
}
} }
}}} }}}