[Working Professional] Java Bronze study time was 28 hours. How an infrastructure professional who can write shell scripts structures their certifications

In my case, the study time for Java Bronze was 28 hours.The duration was 5 weeks, with about 1 hour on weekdays and 2 hours ...
CSDN博客

深拷贝和浅拷贝：一次“搬家”事故

本内容遵循CC 4.0 BY-SA版权协议 周五晚上，小刘抱着电脑来找我：“杨工，我改一个对象里的列表，结果另一个对象也跟着变了，这是见鬼了吗？” 我笑了：“没见鬼，你这是浅拷贝。” 第一幕：搬家那天 小刘租的房子到期，要搬去新小区。 他有两样东西： ...

[Definitive Guide] The '5 Debugging Steps' That Stopped Me From Freezing at Error Screens in My First Year After Changing Jobs

Introduction: The story of how I wasted 3 hours on my first dayOn my first day, I was given my first task."Run this Python ...
blog.csdn

cosmos 仓库实战：Java 二维数组（2D Array）声明、遍历与二维 ArrayList 全解析

Java 二维数组（2D Array）是一维数组在多维方向上的自然扩展，也是矩阵运算、图像处理、棋盘类算法等场景中最基础的数据载体。本文以 cosmos 仓库中 readme-2DArray.md为主线，结合同一目录下的可 ...