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  • How to Configure Initial Spring Application

    calendar Sep 7, 2022 · 3 min read · spring java  ·
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    How to Configure Initial Spring Application

    How to configure initial Spring application and import it to IntelliJ IDEA, using Spring Initialzer website.


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  • How to Validate a Date in String Format Using Java Regex.

    calendar Sep 6, 2022 · 3 min read · java date  ·
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    How to Validate a Date in String Format Using Java Regex.

    How to validate a date in yyyy-MM-dd String format using Java regex features: Pattern, String, and Matcher classes


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  • How to Round Down or Up a Number in Java

    calendar Sep 6, 2022 · 2 min read · java operators  ·
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    How to Round Down or Up a Number in Java

    This article shows how to round down or round up a number using the floor and ceil functions from the Java Math class.


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  • How to Sort an Array or List of Numbers in Java

    calendar Sep 5, 2022 · 4 min read · java sorting  ·
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    How to Sort an Array or List of Numbers in Java

    How to sort lists and arrays of numbers in place using List.sort, Arrays.sort, and the Comparator interface in Java.


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Pedro Lopes

Engineer, Technologist, Writer, Teacher, and Perpetual Student.
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Featured Posts

  • What are Records in Java 14
  • Deadlock, Livelock, and Starvation in Java

Recent Posts

  • ZonedDateTime in Java: Convert Between Timezones and Handle Daylight-Saving Time Automatically
  • Differences Between anyMatch() vs. allMatch() vs. noneMatch() in Java
  • Java 8 Stream findFirst vs. findAny: Perfomance and Functional Differences
  • Type Erasure and Heap Pollution in Java
  • Introduction to Generics in Java
  • What are Records in Java 14
  • Deadlock, Livelock, and Starvation in Java

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