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What is an adapter adapters play the role of bearing and converter in the flexible combination and application function of STL components. The concept of adapter is actually a design pattern. In the design pattern, the definition of adapter style is as follows: convert one class interface into another class interface, so that classes that ...

catalogue I What is a container Adapter II Stack stack 2.1 introduction to stack 2.2 use of stack 2.3 simulation implementation of stack III Queue queue 3.1 queue introduction 3.2 use of queue 3.3 simulation implementation of queue IV priority_queue priority queue 4.1priority_queue introduction 4.2 priority_queue usage 4.3 simulati ...

11 holding object Usually, the program always creates new objects according to certain conditions known at runtime. There is no need to define the number of objects to be created in advance. You can create any number of objects as needed. Array must implement the specified number, so it is constrained. Java provides container classes to sol ...

Thread usage problems Frequent creation and destruction of threadsToo many threads will cause the overhead of CPU resources.Context switching (consuming CPU resources). Thread reuse Connection pool, object pool, memory pool, thread pool. The core of pooling Technology: reuse Thread pool Create a series of threads in advance and save t ...

What is rabbit MQ RabbitMQ is an open source message broker and queue server based on AMQP protocol. advantage: Erlang language is used for development as the underlying language: Erlang has the same latency as the native Socket, so the performance is very highOpen source, excellent performance and stability guaranteeProvide reliability messa ...

Queue is a first in first out ordered list, which can be realized by array or linked list (for example, Bank Queuing System) prerequisite: maxSize: queue capacity (length of array) arr: array of simulated queues front: points to the previous element of the queue header element, with an initial value of - 1 rear: refers to the element at th ...

1.ArrayDeque analysis 1.1 inheritance system As can be seen from its name, it is a double ended Queue implemented by array. Compared with LinkedList, which is a double ended Queue implemented by linked list, ArrayDeque implements the Queue interface and is also a common class under Collection. 1.2 common methods public interface Deque< ...

Please implement two functions to serialize and deserialize the binary tree respectively. You need to design an algorithm to realize the serialization and deserialization of binary tree. There is no restriction on the execution logic of your sequence / deserialization algorithm. You only need to ensure that a binary tree can be serialized into ...

Queue introduction Queue is a special linear table, which only allows deletion at the front of the table and insertion at the back of the table. The position where the deletion operation is performed is called the opposite head, and the position where the insertion operation is performed is called the end of the queue. characteristic FIFO first ...

Two stacks S1 and S2 are used to simulate a queue. Two stacks S1 and S2 are used to simulate a queue. When an element needs to be inserted into the queue, S1 is used to store the input element, that is, S1 performs the stack operation. When it is necessary to get out of the queue, the stack operation is performed on S2. Since the order of t ...