These articles discuss various online resources for learning Java programming, including websites that offer free tutorials, courses, videos, and documentation. Codecondo recommends 10 specific ways to learn Java, such as books, online tutorials, IDEs, and coding practice sites. Simplilearn lists resources like blogs, forums, and curated paths. JavaCodeGeeks covers 15 general online learning sites. FactsNFlakes highlights 5 free sites for learning Java online through video lessons and MOOCs.