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Intro to Spring / Spring Boot
Creating a Web Services (Web App) using Spring Boot
Creating REST/RESTful APIs (like /search API of Google)
Intro to MySQL and JDBC
Make yourself comfortable with basics of core Java (Useful links given below)
Install and explore "Postman" (by hitting some APIs), study about JSON also (Useful links given below)
Install Maven (Useful links given below)
Install MySQL (including workbench) and try some commands(Creating table etc.) (Useful links given below)
Study about REST APIs (GET, POST, PUT etc.) (Useful links given below)
For REST APIs https://www.youtube.com/watch?v=xkKcdK1u95s&list=PLqq-6Pq4lTTZh5U8RbdXq0WaYvZBz2rbn (only first 7 videos of this playlist)
For core Java: https://www.geeksforgeeks.org/java/ https://www.w3schools.com/JAVA/default.asp https://www.youtube.com/watch?v=W-N2ltgU-X4
For Postman: https://www.postman.com/downloads/ https://www.youtube.com/watch?v=7E60ZttwIpY
For MySQL: https://www.youtube.com/watch?v=WuBcTJnIuzo https://linuxconfig.org/install-and-configure-mysql-workbench-on-ubuntu-linux
https://www.youtube.com/watch?v=7S_tz1z_5bA (only first one hour will be sufficient) https://www.mysqltutorial.org/
For Maven: https://www.youtube.com/watch?v=pt3uB0sd5kY https://maven.apache.org/install.html
For JSON: https://www.youtube.com/watch?v=iiADhChRriM
Adding few more links ( for core Java only): https://www.youtube.com/watch?v=pTAda7qU4LY&list=PL59LTecnGM1Mg6I4i_KbS0w5bPcDjl7oz&index=9 https://www.youtube.com/watch?v=70qy6_gw1Hc&list=PL59LTecnGM1Mg6I4i_KbS0w5bPcDjl7oz&index=13 https://www.youtube.com/watch?v=6q98thyEX4Q&list=PLonJJ3BVjZW6_q8gh7XoLUIhRIyBcYJLP https://www.youtube.com/watch?v=7GwptabrYyk
https://api.github.com/search/users?q=shashi
https://developer.github.com/v3/
https://www.youtube.com/watch?v=msXL2oDexqw&list=PLqq-6Pq4lTTbx8p2oCgcAQGQyqN8XeA1x
https://www.youtube.com/watch?v=sm-8qfMWEV8&list=PLqq-6Pq4lTTYTEooakHchTGglSvkZAjnE
https://www.youtube.com/watch?v=y8IQb4ofjDo&list=PLqq-6Pq4lTTZSKAFG6aCDVDP86Qx4lNas
https://www.youtube.com/watch?v=o8RO38KbWvA&list=PLqq-6Pq4lTTbXZY_elyGv7IkKrfkSrX5e
https://www.youtube.com/watch?v=upoIwn4rWCo&list=PLqq-6Pq4lTTaoaVoQVfRJPqvNTCjcTvJB
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For Deploying on AWS: https://www.youtube.com/watch?v=6RrqytT0-I8
Object Oriented Design (OOPs) related questions:
https://www.geeksforgeeks.org/design-snake-game/
https://www.geeksforgeeks.org/design-online-hotel-booking-system-like-oyo-rooms/
https://www.geeksforgeeks.org/design-an-online-book-reader-system/
https://www.careercup.com/resume
You can add these skills to your resume/profile after the course completion:
Java, Spring / Spring Boot, REST APIs, MySQL, JPA / Hibernate, JDBC, Socket Programming, Maven, Postman, Swagger
https://www.journaldev.com/2366/core-java-interview-questions-and-answers