粗大的内捧猛烈进出小视频,成人18+在线观看,国产+欧美+日韩在线

Article Tags

All
web3.0
- All
Backend Development
Web Front-end
Database
- All
- Mysql Tutorial
- navicat
- SQL
- Redis
- phpMyAdmin
- Oracle
- MongoDB
Operation and Maintenance
- All
- Mac OS
- Linux Operation and Maintenance
- Apache
- Nginx
- CentOS
- Docker
Development Tools
- All
- VSCode
- sublime
- notepad
- git
- composer
PHP Framework
- All
- Laravel
- YII
Common Problem
- All
Other
- All
- IIS
- SEO
- Premiere
Tech
- All
- AI
- It Industry
CMS Tutorial
- All
- WordPress
Java
- All
- javaTutorial
System Tutorial
- All
- Windows Series
- LINUX
- MAC
Computer Tutorials
Hardware Tutorial
Mobile Tutorial
- All
- Mobile News
- iPhone
- Android Phone
Software Tutorial
Mobile Game Tutorial

Home

Technical Articles

Java

javaTutorial

Efficiently calculate the number of array elements greater than or equal to a specific value: Optimized loop algorithm

This article aims to provide an efficient algorithm for calculating the number of elements greater than or equal to each element in a given array b. By sorting array a and using binary search, the original O(n*m) time complexity is reduced to O(n log n), significantly improving the performance when processing large data sets. The article will introduce the algorithm principles in detail and provide Java code examples to help readers understand and apply.

Sep 04, 2025 am 04:15 AM

Google Cloud Function Status Saving Tutorial before Update

This article aims to provide a practical guide to saving critical data before updating Google Cloud Function (first generation). Because Cloud Function V1 lacks a destroy hook, we will explore how to safely store important data such as static variables to Google Cloud Storage (GCS) when updating functions to avoid data loss. This article will provide a feasible solution to help developers ensure data integrity when updating functions.

Sep 04, 2025 am 04:12 AM

Detailed explanation of the retry mechanism of deserialization errors in Kafka batch listener

This article aims to explore in-depth how Kafka batch listeners implement retry mechanisms when encountering deserialization errors. By removing the default fatal exception type and combining the ListenerUtils.byteArrayToDeserializationException() method, developers can effectively handle deserialization exceptions and ensure reliable consumption of messages. This article will provide detailed configuration steps and code examples to help readers master the retry strategy of Kafka deserialization errors.

Sep 04, 2025 am 03:48 AM

Elasticsearch's problem of not being able to use alphanumeric mixed search

This article provides a solution to the problem of failure of alphanumeric mixed encoding search in Elasticsearch. When using a specific analyzer to process text, the numbers may be removed, affecting search results. This article will explain how to solve this problem by choosing the right tokenizer (such as edge-gram or standard analyzer) to ensure that the alphanumeric mixed encoding can be indexed and searched correctly.

Sep 04, 2025 am 03:42 AM

Build an efficient and universal CSV data converter using Java generics

This tutorial explores how to use Java generics to create a flexible and type-safe CSV data-to-Java object conversion scheme. By introducing generics, we can avoid repeated writing of transformation logic for different data types such as Cat and Dog, thus achieving a high degree of reusability and maintenance of the code while providing best practice suggestions, including using mature third-party libraries.

Sep 04, 2025 am 03:24 AM

Efficient merge JSONArray in Java: Integrating complex key-value pairs based on shared IDs

This tutorial explains in detail how to efficiently merge multiple JSONArrays in Java, and integrate key-value pairs in different JSONObjects into a new JSONArray through the shared "id" field. The article will introduce a HashMap-based strategy that can intelligently match and aggregate data and ultimately generate a target structure. We will also provide sample code and key considerations to help developers achieve clear and maintainable solutions when dealing with complex JSON data integration tasks.

Sep 04, 2025 am 03:15 AM

Deploy Quarkus apps to Render.com with Docker

This document is intended to guide developers on how to deploy Quarkus apps to Render.com using Docker. Since Render.com does not natively support Java applications, we need to use Docker containerization technology. This article will explain in detail how to configure Dockerfile, solve possible problems during the build process, and ultimately successfully deploy the Quarkus application.

Sep 04, 2025 am 03:06 AM

Tutorial on matching string Heming distance calculation and list in Java

This article details how to calculate the Heming distance of two strings in Java and handle the situation of mismatch in length. The tutorial will guide readers to implement a program that can obtain a list of strings and a target string from user input, calculate the Heming distance between each string in the list and the target string, and finally find and display the shortest Heming distance and its corresponding string.

Sep 04, 2025 am 01:12 AM

Working in collaboration between JavaScript verification and Servlet form submission in web applications

This article deeply explores the collaborative mechanism between JavaScript client verification and Java Servlet backend processing in web applications. In response to the 405 error caused by the misuse of e.preventDefault() in form submission and the HTTP method mismatch, the article provides the correct client verification logic and form submission strategy. By optimizing the front-end code, we ensure that user data can be successfully passed to the back-end Servlet for processing after passing the front-end verification, achieving efficient and safe form functions.

Sep 04, 2025 am 12:36 AM

Handling text repetitive words in Java: efficient detection, removal and formatting output tutorial

This tutorial aims to solve the problem of identifying and removing consecutive repetitive words in Java, and output processing results in a specified format. We will explore how to avoid direct printing in loops, instead use data structures such as StringBuilder to efficiently build modified strings, and compare original and corrected sentences to determine whether there is duplication, and ultimately achieve clear and professional output.

Sep 03, 2025 pm 12:06 PM

How to save dynamically created checkbox status in Android

This article describes how to save the status of dynamically created checkboxes in an Android application so that they can remain selected even after the application is restarted until the user unchecks it. We will explore ways to persist checkbox state using SharedPreferences and provide code examples.

Sep 03, 2025 am 11:51 AM

Deeply understand race conditions and non-atomic operations in Java multithreading

This tutorial aims to explore the race conditions in Java multithreaded programming. By analyzing an initial case that failed to successfully reproduce race conditions and introducing a well-designed example, we will clearly demonstrate how shared variable state, non-atomic operations can lead to data inconsistencies. The article will explain the mechanism of generating race conditions in detail, and provide code examples and output analysis to help developers understand and identify such concurrency problems.

Sep 03, 2025 am 11:48 AM

Correct pose for finding elements by object attributes in Java ArrayList

This tutorial explores the correct way to find elements based on object-specific attributes (such as product names) in Java ArrayList. It states that using ArrayList.contains() directly with the string parameter is invalid because the type does not match. The article will introduce in detail the implementation method of iteratively traversing the list and efficient search using the Java 8 Stream API, and provide corresponding code examples and precautions.

Sep 03, 2025 am 11:42 AM

Greedy algorithm to implement the sum of the minimum integer combination

This article will introduce in detail how to use the greedy algorithm to select the minimum number of integers from a given denomination (5, 2, 1), so that their sum equals the target integer n. We will help readers understand and implement this classic change problem solution through step-by-step analysis, code examples and considerations.

Sep 03, 2025 am 11:36 AM