InfoWorld

High-performance programming with Java streams

Learn how to use advanced techniques like short-circuiting, parallel execution, virtual threads, and stream gatherers to maximize Java stream performance. My recent Java Stream API tutorial introduced ...
TheServerSide

How to use Java's javap tool by example

Community driven content discussing all aspects of software development from DevOps to design patterns. When you install Java, the JDK comes with a number of helpful utilities packed within the ...
搜狐

Arrays.asList() 数组转换成集合酿成的线上事故，差点要滚蛋了！

在Java开发中，数组与集合之间的转换是一个常见的操作。Arrays.asList方法因其简洁的语法和便捷的使用方式，被广泛应用于将数组转换为集合（如List）。然而，这个看似简单的方法背后却隐藏着一个大坑，如果不小心处理，可能会导致线上事故，本文也是本人 ...
TheServerSide

Java array size, length and loop examples

Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...
搜狐

Java 中的位运算详解

位运算（Bitwise Operations）是直接对整数的二进制位进行操作的运算方式。Java 提供了多种位运算符，适用于需要高效处理二进制数据或优化性能的场景（如加密、图像处理、底层系统编程等）。以下是 Java 中位运算的全面说明： 1. 位运算符一览 运算符 名称 描述 ...
InfoWorld

How to use generics in your Java programs

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...
GitHub

Fix java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util ...

androidx.fragment.app.FragmentManager$4.run (FragmentManager.java:413); ...