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What issues should be considered when overriding equals and hashCode in Java?
...verride
public int hashCode() {
return new HashCodeBuilder(17, 31). // two randomly chosen prime numbers
// if deriving: appendSuper(super.hashCode()).
append(name).
append(age).
toHashCode();
}
@Override
public boolean equals(...
How do you access the matched groups in a JavaScript regular expression?
...s. It has been started to land on major browsers and JS engines as Chrome 73+ / Node 12+ and Firefox 67+.
The method returns an iterator and is used as follows:
const string = "something format_abc";
const regexp = /(?:^|\s)format_(.*?)(?:\s|$)/g;
const matches = string.matchAll(regexp);
...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
What do folks here see as the relative strengths and weaknesses of Git, Mercurial, and Bazaar?
16 Answers
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Which is faster: Stack allocation or Heap allocation
...
23 Answers
23
Active
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When to use inline function and when not to use it?
...e
[9] Inline functions
Policies/Binary Compatibility Issues With C++
GotW #33: Inline
Inline Redux
Effective C++ - Item 33: Use inlining judiciously
EDIT: Bjarne Stroustrup, The C++ Programming Language:
A function can be defined to be inline. For example:
inline int fac(int n)
{
retur...
Using parameters in batch files at Windows command line
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edited Oct 30 '13 at 11:40
answered Jan 12 '13 at 22:46
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“java.lang.OutOfMemoryError : unable to create new native Thread”
...utOfMemoryError : unable to create new native Thread " on 8GB RAM VM after 32k threads (ps -eLF| grep -c java)
13 Answers
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...nary / FromDictionary
错误处理
MQTT服务质量（QoS）：3个等级
保留消息（RetainFlag）
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《App Inventor 2 MQTT拓展入门（保姆级教程）》
基础用法已内置设计器「通信连接」分类里的 MQTT客户端 就是本拓展...
vector::at vs. vector::operator[]
...
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