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boutiqueDiscussion on Functional Programming
1. Foreword has become busy recently, and there is less and less time to write. I started trying in Java development these days...
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boutiqueSharing some practical skills for Java ServletRequest
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ServletRequest is a Servlet Api that we often come into contact with when working on Java Web. Sometimes I...
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boutiqueHow to determine whether a string is a number in java
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Numbers are often represented and conveyed in strings in some fields. So how do we determine a string...
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boutiqueResponsibility Chain Model of Design Model
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Many frameworks such as mybatis plug-ins, servlets filter, dubbo, security frameworks such as Spring sec...
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boutiqueWhen calculating in Java development, please be sure to use BigDecimal to calculate. BigDecimal summarizes and summarizes
Preface Today, a junior developer in the group asked why the tester tested that the price calculation module he wrote had calculation deviations...
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boutiqueJava random number traps
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We should be familiar with random numbers. We use them to generate Captcha in business, or we have low requirements for repeatability...
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boutiqueSummary of core knowledge of java annotation
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A few years ago, our project was still running on structs 2, and once I asked a colleague if he knew
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boutiqueJava 8 Time Api User Guide Collector's Edition
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Java 8 introduces new APIs for Date and Time to solve the problem of old java.util.Date and java.util.Ca...
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boutiqueJava enumerates implement state machines to streamline your state change logic
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I believe that many java developers have written about status changes, such as order processes, leave processes, etc. Generally...
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