Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Skills you'll gain: Model View Controller, Software Design Patterns, Java Platform Enterprise Edition (J2EE), Java, Web Applications, Java Programming, Code Reusability, Back-End Web Development, Server Side, Data Access, Integrated Development Environments, Databases, Forecasting, Data Science, Authentications, Financial Data
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Model View Controller, Web Applications, JavaScript Frameworks, Data Validation, Application Frameworks, Javascript, Application Development, Web Development
★ 4.6 (7) · Intermediate · Guided Project · Less Than 2 Hours

★ 5 (24) · Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Networking Hardware, General Networking, Network Infrastructure, Local Area Networks, OSI Models, Network Protocols, Network Support, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), TCP/IP, Network Architecture, Computer Networking, Network Planning And Design, Wireless Networks, Network Security, Network Switches, Virtual Local Area Network (VLAN)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Reconciliation, Intercompany Accounting, Accounting Systems, Inventory Accounting, Technical Accounting, Specialized Accounting, Ledgers (Accounting), Accounting Records, Accounting, Profit and Loss (P&L) Management, Financial Accounting, Financial Reporting, Auditing, General Ledger, Accounts Receivable, Consolidation, Invoicing, International Finance, Performance Analysis, Organizational Structure
★ 4.9 (13) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Hootsuite, Content Scheduling, Social Media Analytics, Social Media Content, Brand Strategy, Content Performance Analysis, Branding, Brand Awareness, Social Media Strategy, Brand Management, Digital Marketing Tools, Digital Brand Strategy, Performance Analysis, Digital Media Strategy, Content Development and Management, Performance Measurement, Calendar Management, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Blockchain, FinTech, Business Logic, Encryption, Web Applications, Payment Systems, Distributed Computing, Market Liquidity, Governance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Test Tools, Unit Testing, Development Testing, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Application Development, Debugging, Software Configuration Management, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing
Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Front-End Web Development, Web Development, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Design, Scripting, Javascript
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cloud-Native Computing, Cloud Applications, Cloud Development, Google App Engine, Google Cloud Platform, Serverless Computing, Application Deployment, Cloud Deployment, Application Performance Management, Application Design, Infrastructure as Code (IaC), Cloud API, Data Store, Application Development, API Gateway, Microservices, Authentications, Cloud Storage, Cloud Computing, Debugging
Intermediate · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Operating Systems, Data Maintenance, Package and Software Management, File Management
★ 4.8 (24) · Beginner · Course · 1 - 4 Weeks

★ 4.9 (14) · Intermediate · Course · 1 - 4 Weeks