No matter which country developers are coming from, most of them hold a college or university diploma with a degree in computer engineering, computer science, or informational technology. In Ukraine, for example, 87% of Java engineers have a higher education versus 71% of American-based developers.
The majority of software engineers whose native language is not English usually speak it perfectly well. Almost 54% of Java devs from European countries like Germany, Holland, and Ukraine speak at least the upper-intermediate level and above; besides, the level of English has a direct connection with the programmer's seniority level — only 22% of junior developers can freely communicate with foreign customers.
Nevertheless, Java pros are more than happy to devote their spare time to self-studying and polishing their professional skills. They read specific literature, attend IT events, and conduct online and offline courses and training.