8 Things Java Programmers Should Learn In 2022

Written By Mohammed Aman

Java developers

[{"selector":"#anim-50b83794-feea-4dca-9924-35afa2a7df1d","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4fb30f05-8ce4-448b-8b13-a6b38a6098b8","keyframes":{"transform":["translate3d(-108.84719%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a1cc78f7-ba3d-4b27-8cde-fa66ef3937d3","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ea1340cb-177a-4e65-bd32-1fbe18e8253b","keyframes":{"transform":["translate3d(-110.0295%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Being a Java developer. I frequently receive requests from Java programmers from all over the world asking how they can improve themselves. Learn More Arrow

Java developers

[{"selector":"#anim-b2f05553-bae4-4c60-89d0-45f3fbb39096","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7bcd550d-d275-4b65-9d9c-f246cba1738b","keyframes":{"transform":["translate3d(-108.84719%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-89981291-e89a-4db0-af70-1a5d5259c0fc","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e2abae9a-4558-4de0-a8da-3fe24b1df5ae","keyframes":{"transform":["translate3d(-110.0295%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] I have decided to jot down new tips for Java programmers to improve themselves. Learn More Arrow

Java developers

[{"selector":"#anim-4f2faba8-4368-4227-b0c6-a0e8b6da12a7","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6baa56df-c344-46e8-949d-5d7fb12eebeb","keyframes":{"transform":["translate3d(-108.84719%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-753972c4-bf9b-4652-b20e-87e4c6d4a59d","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6bc3da48-9c77-49a5-8efb-c065da580b87","keyframes":{"transform":["translate3d(-110.0295%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] So without wasting any more time, let’s see my 8 ideas for Java programmers to learn in 2022 Learn More Arrow

1. Learn Java Performance Tuning

[{"selector":"#anim-da8cae46-8efc-47f9-8334-4de834eea5b5","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-81c93749-a9b0-4a3d-b7c4-01c1edc2cd33","keyframes":{"transform":["translate3d(-109.65147%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f31cba31-bb0a-4ccd-b840-2bf3ac47ee7a","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a8dd1579-9e10-4cca-a1d8-4c76c0ce8208","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] In the last couple of years one skill that I clearly see lacking is knowledge and understanding about JVM internals, GC behavior, and Java performance tuning. Learn More Arrow

2. Docker and Kubernetes

[{"selector":"#anim-325eff58-3f86-45a2-9af3-a27a93972a3e","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ece13125-e11c-4461-b770-65154b3abdbb","keyframes":{"transform":["translate3d(-109.65147%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3f7c9fb0-bd27-45f3-95ae-f093b2330025","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3fbb5f84-7fde-4532-a58f-f1a4b3b9fe90","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] You’ve probably heard the buzz around Docker and Kubernetes and the impact it has on DevOps teams Learn More Arrow

3. DevOps (Jenkins)

[{"selector":"#anim-e11a51cc-e910-4788-bc36-edbd1018946f","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b5980747-4e10-4119-abd8-f19376755a58","keyframes":{"transform":["translate3d(-109.38338%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-270aa19e-6a06-4a03-b6a0-1f92c008e78c","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3dd1afd3-dfa9-4a1f-a1f9-78bf3342e109","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] This is another area where I am seeing a lot of traction last year as more and more companies are moving into DevOps and adopting continuous integration and deployment. Learn More Arrow

4. Code every day for 2 hour

[{"selector":"#anim-43778166-db43-4aef-a019-f4401b6878f2","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f8dd5f17-8335-461a-b09e-e82a55069d69","keyframes":{"transform":["translate3d(-109.65147%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3aca6ee5-faed-4fe7-9218-e4c60a019c05","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-be614eb3-7754-4048-8124-a7f8dd300377","keyframes":{"transform":["translate3d(-111.11111%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Another thing I noticed last year is that as your experience grows, you spend your time on coordination. Learn More Arrow

5. Participate in Coding Challenge

[{"selector":"#anim-f3ada336-9a64-47b5-8b09-f15263ed0e65","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-54f1b682-351c-47a3-8308-b8e5148a4a89","keyframes":{"transform":["translate3d(-110.05748%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-20b3d0fe-e469-48bb-8805-9750022810d8","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ce988329-7728-4147-a088-dac13f5760d0","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] This goal is, again, somewhat related to our second resolution — write code every day for 2 hours. Let’s face it, sometimes, you don’t have enough chances in your live project to code. Learn More Arrow

6. Learn Network Programming in Java

[{"selector":"#anim-dc95043b-dece-4468-b655-de069944230f","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2de97b81-b740-4f83-860a-d9c3f14e246f","keyframes":{"transform":["translate3d(-110.34482%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-43490c6c-ed56-4408-ab94-890584f3bc40","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-59a4dd9a-5978-4ebb-8bba-e26950fd4804","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] One more thing I have learned from interviewing people is that Java developers need to improve their socket programming and networking fundamentals. Learn More Arrow

7. Unit Testing

[{"selector":"#anim-ad963ab3-caf1-41f8-90f5-1906ab6d73ca","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ed761e20-146c-4e65-9814-52f204b6451d","keyframes":{"transform":["translate3d(-109.65147%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-37c58edf-53f3-4211-a080-dba6a10d739e","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-38e4d3b7-3f37-49e0-aa29-374f21432476","keyframes":{"transform":["translate3d(-109.57446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] If you want to become a better developer in 2022, then you should work on your unit testing skills. And not just unit testing, but automated testing in general. Learn More Arrow

8. Profile Your Java application Once a Month

[{"selector":"#anim-f4b1a519-0350-42e3-8dbd-dc3de89bebd3","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-809f9dda-748f-4605-af2b-a5c6235b7183","keyframes":{"transform":["translate3d(-109.38338%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-77c8c2bd-e98b-43d6-b6cd-232fe7611c74","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-aed8bad7-842d-44db-bb56-afad24ac1c54","keyframes":{"transform":["translate3d(-110.68249%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] This tip is attached with the first tip about reading a good book on JVM internals. I suggest you profile your Java application, at least once a month . Learn More Arrow

Summary

[{"selector":"#anim-5704185d-d064-4426-90d8-1734959b1218","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bd762633-4117-45e4-8f85-88931c213553","keyframes":{"transform":["translate3d(-109.38338%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8740c319-6159-4dc5-b1f4-daa6620dd443","keyframes":{"opacity":[0,1]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-020d9624-e697-46f4-a864-d191a5557073","keyframes":{"transform":["translate3d(-110.68249%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] hat’s my advice! If you are a Java programmer with a couple of years of experience, you can also take inspiration from this list to set your goal. Learn More Arrow