{ "ml": { "v": "4", "fs": [ { "id": 0, "prob": 0.9072463512420654, "class": 0 } ], "prob": 0.90724635, "class": 0, "models": [ { "m": "az", "prob": 0.90724635, "class": 0 } ], "version": "v17.17", "thresholds": [ 0.999503, 0.9998882 ], "analyzed_at": "2026-05-26T03:03:12Z" }, "path": "Java 容器.md", "raw": { "v": "5", "fs": [ { "f": "O(C)H(Cm)Md", "x": 116, "ff": { "m": { "file": { "size": 35921.0, "entropy": 6.24, "size_bytes": 35921.0 } }, "s": [ [ 0, "u8", "# Java" ], [ 14, "u8", "\u003c!-- GFM-TOC --\u003e" ], [ 94, "u8", "* [Collection](#collection)" ], [ 358, "u8", "* [ArrayList](#arraylist)" ], [ 392, "u8", "* [Vector](#vector)" ], [ 420, "u8", "* [CopyOnWriteArrayList](#copyonwritearraylist)" ], [ 476, "u8", "* [LinkedList](#linkedlist)" ], [ 512, "u8", "* [HashMap](#hashmap)" ], [ 542, "u8", "* [ConcurrentHashMap](#concurrenthashmap)" ], [ 592, "u8", "* [LinkedHashMap](#linkedhashmap)" ], [ 634, "u8", "* [WeakHashMap](#weakhashmap)" ], [ 762, "u8", "Collection" ], [ 890, "u8", "### Collection" ], [ 906, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208220948084.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 1051, "u8", "- TreeSet" ], [ 1183, "u8", "HashSet" ], [ 1237, "u8", "TreeSet" ], [ 1264, "u8", "- HashSet" ], [ 1414, "u8", "Iterator" ], [ 1474, "u8", "- LinkedHashSet" ], [ 1601, "u8", "- ArrayList" ], [ 1665, "u8", "- Vector" ], [ 1679, "u8", "ArrayList" ], [ 1728, "u8", "- LinkedList" ], [ 1866, "u8", "LinkedList" ], [ 1992, "u8", "- PriorityQueue" ], [ 2072, "u8", "### Map" ], [ 2081, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20201101234335837.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 2213, "u8", "- TreeMap" ], [ 2251, "u8", "- HashMap" ], [ 2289, "u8", "- HashTable" ], [ 2306, "u8", "HashMap" ], [ 2399, "u8", "HashTable" ], [ 2494, "u8", "ConcurrentHashMap" ], [ 2624, "u8", "- LinkedHashMap" ], [ 2809, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208225301973.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 2961, "u8", "Iterable" ], [ 2989, "u8", "iterator()" ], [ 3115, "u8", "JDK 1.5" ], [ 3142, "u8", "foreach" ], [ 3219, "u8", "List\u003cString\u003e list = new ArrayList\u003c\u003e();" ], [ 3258, "u8", "list.add(\"a\");" ], [ 3273, "u8", "list.add(\"b\");" ], [ 3288, "u8", "for (String item : list) {" ], [ 3315, "u8", "System.out.println(item);" ], [ 3373, "u8", "java.util.Arrays#asList()" ], [ 3429, "u8", "List" ], [ 3454, "u8", "@SafeVarargs" ], [ 3467, "u8", "public static \u003cT\u003e List\u003cT\u003e asList(T... a)" ], [ 3531, "u8", "asList()" ], [ 3701, "u8", "List list = Arrays.asList(arr);" ], [ 3793, "u8", "List list = Arrays.asList(1, 2, 3);" ], [ 3908, "u8", "JDK 1.8" ], [ 3924, "u8", "IDEA" ], [ 3933, "u8", "double shift" ], [ 3953, "u8", "Search EveryWhere" ], [ 4033, "u8", "### ArrayList" ], [ 4142, "u8", "RandomAccess" ], [ 4213, "u8", "public class ArrayList\u003cE\u003e extends AbstractList\u003cE\u003e" ], [ 4263, "u8", "implements List\u003cE\u003e, RandomAccess, Cloneable, java.io.Serializable" ], [ 4382, "u8", "private static final int DEFAULT_CAPACITY = 10;" ], [ 4435, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208232221265.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 4604, "u8", "ensureCapacityInternal()" ], [ 4690, "u8", "grow()" ], [ 4740, "u8", "`oldCapacity + (oldCapacity \u003e\u003e 1)`" ], [ 4781, "u8", "oldCapacity+oldCapacity/2" ], [ 4816, "u8", "oldCapacity \u003e\u003e 1" ], [ 4905, "u8", "oldCapacity" ], [ 4999, "u8", "`Arrays.copyOf()`" ], [ 5201, "u8", "public boolean add(E e) {" ], [ 5227, "u8", "ensureCapacityInternal(size + 1); // Increments modCount!!" ], [ 5291, "u8", "elementData[size++] = e;" ], [ 5320, "u8", "return true;" ], [ 5340, "u8", "private void ensureCapacityInternal(int minCapacity) {" ], [ 5395, "u8", "if (elementData == DEFAULTCAPACITY_EMPTY_ELEMENTDATA) {" ], [ 5455, "u8", "minCapacity = Math.max(DEFAULT_CAPACITY, minCapacity);" ], [ 5524, "u8", "ensureExplicitCapacity(minCapacity);" ], [ 5568, "u8", "private void ensureExplicitCapacity(int minCapacity) {" ], [ 5623, "u8", "modCount++;" ], [ 5639, "u8", "// overflow-conscious code" ], [ 5670, "u8", "if (minCapacity - elementData.length \u003e 0)" ], [ 5716, "u8", "grow(minCapacity);" ], [ 5746, "u8", "private void grow(int minCapacity) {" ], [ 5814, "u8", "int oldCapacity = elementData.length;" ], [ 5856, "u8", "int newCapacity = oldCapacity + (oldCapacity \u003e\u003e 1);" ], [ 5912, "u8", "if (newCapacity - minCapacity \u003c 0)" ], [ 5951, "u8", "newCapacity = minCapacity;" ], [ 5986, "u8", "if (newCapacity - MAX_ARRAY_SIZE \u003e 0)" ], [ 6028, "u8", "newCapacity = hugeCapacity(minCapacity);" ], [ 6077, "u8", "// minCapacity is usually close to size, so this is a win:" ], [ 6140, "u8", "elementData = Arrays.copyOf(elementData, newCapacity);" ], [ 6240, "u8", "System.arraycopy()" ], [ 6299, "u8", "index" ], [ 6428, "u8", "public E remove(int index) {" ], [ 6457, "u8", "rangeCheck(index);" ], [ 6496, "u8", "E oldValue = elementData(index);" ], [ 6533, "u8", "int numMoved = size - index - 1;" ], [ 6570, "u8", "if (numMoved \u003e 0)" ], [ 6592, "u8", "System.arraycopy(elementData, index+1, elementData, index, numMoved);" ], [ 6670, "u8", "elementData[--size] = null; // clear to let GC do its work" ], [ 6733, "u8", "return oldValue;" ], [ 6963, "u8", "elementData" ], [ 6982, "u8", "transient" ], [ 7063, "u8", "transient Object[] elementData; // non-private to simplify nested class access" ], [ 7166, "u8", "writeObject()" ], [ 7184, "u8", "readObject()" ], [ 7271, "u8", "private void readObject(java.io.ObjectInputStream s)" ], [ 7324, "u8", "throws java.io.IOException, ClassNotFoundException {" ], [ 7381, "u8", "elementData = EMPTY_ELEMENTDATA;" ], [ 7419, "u8", "// Read in size, and any hidden stuff" ], [ 7461, "u8", "s.defaultReadObject();" ], [ 7489, "u8", "// Read in capacity" ], [ 7513, "u8", "s.readInt(); // ignored" ], [ 7542, "u8", "if (size \u003e 0) {" ], [ 7562, "u8", "// be like clone(), allocate array based upon size not capacity" ], [ 7634, "u8", "ensureCapacityInternal(size);" ], [ 7673, "u8", "Object[] a = elementData;" ], [ 7707, "u8", "// Read in all elements in the proper order." ], [ 7863, "u8", "private void writeObject(java.io.ObjectOutputStream s)" ], [ 7918, "u8", "throws java.io.IOException{" ], [ 7950, "u8", "// Write out element count, and any hidden stuff" ], [ 8003, "u8", "int expectedModCount = modCount;" ], [ 8040, "u8", "s.defaultWriteObject();" ], [ 8069, "u8", "// Write out size as capacity for behavioural compatibility with clone()" ], [ 8146, "u8", "s.writeInt(size);" ], [ 8169, "u8", "// Write out all elements in the proper order." ], [ 8253, "u8", "s.writeObject(elementData[i]);" ], [ 8299, "u8", "if (modCount != expectedModCount) {" ], [ 8339, "u8", "throw new ConcurrentModificationException();" ], [ 8429, "u8", "ObjectOutputStream" ], [ 8668, "u8", "ObjectInputStream" ], [ 8738, "u8", "ArrayList list = new ArrayList();" ], [ 8772, "u8", "ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file));" ], [ 8849, "u8", "oos.writeObject(list);" ], [ 8896, "u8", "modCount" ], [ 9255, "u8", "ConcurrentModificationException" ], [ 9350, "u8", "### Vector" ], [ 9428, "u8", "synchronized" ], [ 9467, "u8", "public synchronized boolean add(E e) {" ], [ 9522, "u8", "ensureCapacityHelper(elementCount + 1);" ], [ 9566, "u8", "elementData[elementCount++] = e;" ], [ 9623, "u8", "public synchronized E get(int index) {" ], [ 9662, "u8", "if (index \u003e= elementCount)" ], [ 9693, "u8", "throw new ArrayIndexOutOfBoundsException(index);" ], [ 9751, "u8", "return elementData(index);" ], [ 9805, "u8", "Vector" ], [ 9839, "u8", "capacityIncrement" ], [ 9903, "u8", "capacity" ], [ 10043, "u8", "public Vector(int initialCapacity, int capacityIncrement) {" ], [ 10116, "u8", "if (initialCapacity \u003c 0)" ], [ 10145, "u8", "throw new IllegalArgumentException(\"Illegal Capacity: \"+" ], [ 10210, "u8", "initialCapacity);" ], [ 10271, "u8", "this.elementData = new Object[initialCapacity];" ], [ 10323, "u8", "this.capacityIncrement = capacityIncrement;" ], [ 10496, "u8", "int newCapacity = oldCapacity + ((capacityIncrement \u003e 0) ?" ], [ 10559, "u8", "capacityIncrement : oldCapacity);" ], [ 11032, "u8", "public Vector(int initialCapacity) {" ], [ 11069, "u8", "this(initialCapacity, 0);" ], [ 11102, "u8", "public Vector() {" ], [ 11526, "u8", "`Collections.synchronizedList();`" ], [ 11650, "u8", "List\u003cString\u003e synList = Collections.synchronizedList(list);" ], [ 11729, "u8", "concurrent" ], [ 11756, "u8", "CopyOnWriteArrayList" ], [ 11794, "u8", "List\u003cString\u003e list = new CopyOnWriteArrayList\u003c\u003e();" ], [ 11849, "u8", "### CopyOnWriteArrayList" ], [ 12195, "u8", "final ReentrantLock lock = this.lock;" ], [ 12237, "u8", "lock.lock();" ], [ 12264, "u8", "Object[] elements = getArray();" ], [ 12304, "u8", "int len = elements.length;" ], [ 12339, "u8", "Object[] newElements = Arrays.copyOf(elements, len + 1);" ], [ 12404, "u8", "newElements[len] = e;" ], [ 12434, "u8", "setArray(newElements);" ], [ 12486, "u8", "} finally {" ], [ 12502, "u8", "lock.unlock();" ], [ 12534, "u8", "final void setArray(Object[] a) {" ], [ 12598, "u8", "@SuppressWarnings(\"unchecked\")" ], [ 12629, "u8", "private E get(Object[] a, int index) {" ], [ 12668, "u8", "return (E) a[index];" ], [ 13238, "u8", "### LinkedList" ], [ 13303, "u8", "Node" ], [ 13346, "u8", "private static class Node\u003cE\u003e {" ], [ 13377, "u8", "E item;" ], [ 13488, "u8", "transient Node\u003cE\u003e first;" ], [ 13513, "u8", "transient Node\u003cE\u003e last;" ], [ 13542, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208233940066.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 14078, "u8", "JDK 1.7" ], [ 14141, "u8", "Entry" ], [ 14163, "u8", "table" ], [ 14486, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208234948205.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 14626, "u8", "transient Entry[] table;" ], [ 14664, "u8", "static class Entry\u003cK,V\u003e implements Map.Entry\u003cK,V\u003e {" ], [ 14716, "u8", "final K key;" ], [ 14733, "u8", "V value;" ], [ 14767, "u8", "int hash;" ], [ 14904, "u8", "public final K getKey() {" ], [ 14934, "u8", "return key;" ], [ 14961, "u8", "public final V getValue() {" ], [ 14993, "u8", "return value;" ], [ 15022, "u8", "public final V setValue(V newValue) {" ], [ 15064, "u8", "V oldValue = value;" ], [ 15092, "u8", "value = newValue;" ], [ 15150, "u8", "public final boolean equals(Object o) {" ], [ 15194, "u8", "if (!(o instanceof Map.Entry))" ], [ 15233, "u8", "return false;" ], [ 15259, "u8", "Map.Entry e = (Map.Entry)o;" ], [ 15295, "u8", "Object k1 = getKey();" ], [ 15325, "u8", "Object k2 = e.getKey();" ], [ 15414, "u8", "Object v1 = getValue();" ], [ 15450, "u8", "Object v2 = e.getValue();" ], [ 15615, "u8", "public final int hashCode() {" ], [ 15649, "u8", "return Objects.hashCode(getKey()) ^ Objects.hashCode(getValue());" ], [ 15730, "u8", "public final String toString() {" ], [ 15767, "u8", "return getKey() + \"=\" + getValue();" ], [ 15866, "u8", "HashMap\u003cString, String\u003e map = new HashMap\u003c\u003e();" ], [ 16077, "u8", "hashCode" ], [ 16745, "u8", "\u003cdiv align=\"center\"\u003e \u003cimg src=\"https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/image-20191208235258643.png\"/\u003e \u003c/div\u003e\u003cb" ], [ 16905, "u8", "public V put(K key, V value) {" ], [ 16936, "u8", "if (table == EMPTY_TABLE) {" ], [ 16968, "u8", "inflateTable(threshold);" ], [ 17020, "u8", "null" ], [ 17060, "u8", "return putForNullKey(value);" ], [ 17097, "u8", "int hash = hash(key);" ], [ 17146, "u8", "int i = indexFor(hash, table.length);" ], [ 17299, "u8", "value" ], [ 17365, "u8", "Object k;" ], [ 17454, "u8", "V oldValue = e.value;" ], [ 17488, "u8", "e.value = value;" ], [ 17517, "u8", "e.recordAccess(this);" ], [ 17639, "u8", "addEntry(hash, key, value, i);" ], [ 17674, "u8", "return null;" ], [ 17778, "u8", "hashCode()" ], [ 17964, "u8", "private V putForNullKey(V value) {" ], [ 18414, "u8", "void addEntry(int hash, K key, V value, int bucketIndex) {" ], [ 18473, "u8", "if ((size \u003e= threshold) \u0026\u0026 (null != table[bucketIndex])) {" ], [ 18536, "u8", "resize(2 * table.length);" ], [ 18616, "u8", "bucketIndex = indexFor(hash, table.length);" ], [ 18675, "u8", "createEntry(hash, key, value, bucketIndex);" ], [ 18726, "u8", "void createEntry(int hash, K key, V value, int bucketIndex) {" ], [ 18880, "u8", "table[bucketIndex] = new Entry\u003c\u003e(hash, key, value, e);" ], [ 19269, "u8", "final int hash(Object k) {" ], [ 19296, "u8", "int h = hashSeed;" ], [ 19318, "u8", "if (0 != h \u0026\u0026 k instanceof String) {" ], [ 19359, "u8", "return sun.misc.Hashing.stringHash32((String) k);" ], [ 19448, "u8", "// This function ensures that hashCodes that differ only by" ], [ 19512, "u8", "// constant multiples at each bit position have a bounded" ], [ 19574, "u8", "// number of collisions (approximately 8 at default load factor)." ], [ 19761, "u8", "return Objects.hashCode(key) ^ Objects.hashCode(value);" ], [ 19920, "u8", "x : 00010000" ], [ 19935, "u8", "x-1 : 00001111" ], [ 20050, "u8", "y : 10110010" ], [ 20069, "u8", "x-1 : 00001111" ], [ 20169, "u8", "y : 10110010" ], [ 20199, "u8", "y%x : 00000010" ], [ 20430, "u8", "hash%capacity" ], [ 20553, "u8", "static int indexFor(int h, int length) {" ], [ 20594, "u8", "return h \u0026 (length-1);" ] ], "id": "markdown" }, "id": 0, "sz": 35921, "ts": [ { "c": 0.7200000286102295, "d": "LLM role context", "e": [ "System" ], "i": "micro-behaviors/data/text/llm/override::llm-role-context", "l": 1 }, { "c": 0.8999999761581421, "d": "Tencent COS bucket URL", "e": [ "cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com" ], "i": "micro-behaviors/communications/http/url/cloud::tencent-cos-url", "l": 3 }, { "a": "T1071", "c": 0.6000000238418579, "d": "URL with .php endpoint", "e": [ "https://www.w3resource.com/java-tutorial/java-collections.php" ], "i": "objectives/command-and-control/infrastructure/domain/tld::php-endpoint-url", "l": 1 }, { "a": "T1071", "c": 0.75, "d": ".cc domain (commonly abused)", "e": [ "https://openhome.cc/" ], "i": "objectives/command-and-control/infrastructure/domain/tld::tld-cc", "l": 3 }, { "c": 0.7200000286102295, "d": "HTML comment marker", "e": [ "\u003c!--" ], "i": "micro-behaviors/data/format/html::comment", "l": 1 }, { "a": "T1071", "c": 0.949999988079071, "d": "PHP endpoint on suspicious domain", "e": [ "https://openhome.cc/", 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