javaproacademy

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The-Java-Bootcamp / testing-spring-data-jpa-repositories

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This repository contains all the code examples from the Testing Spring Data JPA Repositories tutorial.

spring spring-boot jpa junit jpa-entities jpa-hibernate jpa-repository javabootcamp javaproacademy datajpatest

Updated Feb 9, 2026
Java

The-Java-Bootcamp / java-optional-tutorial-blog

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Tired of battling NullPointerExceptions in your Java code? It's time to harness the power of Java's Optional class.

java bootcamp swe optionals javabootcamp javaproacademy

Updated Aug 22, 2024
Java

The-Java-Bootcamp / java-map-vs-flatmap

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Java map() vs flatMap() — Learn the key differences, when to use each, and how to avoid nested Optional and Stream structures. With full runnable examples.

java map functional-programming java-streams optional bootcamp stream-api java-tutorials learn-java flatmap java-examples functional-programming-in-java java17 learn-java-programming javaproacademy java-tutoria

Updated Feb 17, 2026
Java

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