#java Development Tutorials & Tips | Roast Dev

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Day : 18 Return Data types and programmes

Return Data TypesThe return type must be specified before the method's signature when declaring the method. There are several different data types that can be used as a method return type in Java, inc...

08.04.2025 0 Read More

Upgrading Java and Spring without hassle

🤔 Want to upgrade Java, Spring Boot versions is a methodical wayThere is a platform for that!💡 Moderne's OpenRewrite platform helps with managing complexities in upgrading your Java based projec...

08.04.2025 0 Read More

5 Advanced Java Compilation Techniques to Boost Performance

As a best-selling author, I invite you to explore my books on Amazon. Don't forget to follow me on Medium and show your support. Thank you! Your support means the world! The Java compilation pipelin...

08.04.2025 0 Read More

Beyond Blueprints: Seeing the Soul of Java's Classes and Objects

We've all heard the simplistic analogy: "A class is a blueprint, and an object is a house." While it offers a rudimentary starting point, it barely scratches the surface of the profound relationship b...

08.04.2025 0 Read More

How to run containerized JAVA application

Take this multi-stage Dockerfile: ⛶FROM eclipse-temurin:21-jdk-ubi9-minimal AS builder ARG APP_VERSION WORKDIR /application/ COPY build/libs/app-${APP_VERSION}.jar app.jar RUN java -Djarmode=tool...

08.04.2025 0 Read More

Spring boot-java-project_calc

Using Html1) File --> New --> Spring Starter Project 2) Name --> Calculator 3) Select Maven as Type 4) Click Next 5) Add Dependencies: DevTools, Web, Thymeleaf 6) Click Next, Finish 7) Go ...

08.04.2025 0 Read More

Deploying a Scala Play Application to Heroku

I’ve been a web developer for years, but I haven’t touched Java in a long time — like, late-90s long. Back then, Java development felt cumbersome: lots of boilerplate and complex configurati...

08.04.2025 0 Read More

𝗨𝗻𝗹𝗼𝗰𝗸𝗶𝗻𝗴 𝘁𝗵𝗲 𝗣𝗼𝘄𝗲𝗿 𝗼𝗳 𝗖𝗼𝗽𝘆𝗢𝗻𝗪𝗿𝗶𝘁𝗲𝗔𝗿𝗿𝗮𝘆𝗟𝗶𝘀𝘁 𝗶𝗻 𝗝𝗮𝘃𝗮: 𝗔 𝗚𝗮𝗺𝗲-𝗖𝗵𝗮𝗻𝗴𝗲𝗿 𝗳𝗼𝗿 𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴

Have you ever faced the dreaded 𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝘁𝗠𝗼𝗱𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝗘𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻 while iterating over a list in a multithrea...

08.04.2025 0 Read More

How to Use the @Import Annotation in Spring Framework

The @Import annotation allows you to specify which configurations your Spring application should load.You can think of this annotation as your Java class's import statements. In this case, it’s goin...

08.04.2025 0 Read More

Day-11 My Understanding of Method Overloading

✅ Key Rules of Method Overloading: Same method name Different parameter list Different number of parameters Different types of parameters Different order of parameters Return type can ...

08.04.2025 0 Read More

Day : 18 Return Data types and programmes

Upgrading Java and Spring without hassle

5 Advanced Java Compilation Techniques to Boost Performance

Beyond Blueprints: Seeing the Soul of Java's Classes and Objects

How to run containerized JAVA application

Spring boot-java-project_calc

Deploying a Scala Play Application to Heroku

How to Use the @Import Annotation in Spring Framework

Day-11 My Understanding of Method Overloading

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