Java is one of the most popular programming languages despite being more than 25 years old. It has a massive range of applications, from mobile development to big data technologies. Due to its broad applicability, the demand for Java programmers is also on the rise. Hence, it has become a lucrative field with many people wanting to learn Java to enhance their career prospects. Learning Java depends upon many factors such as your familiarity with any other programming languages, no of hours you practise, etc. On average, it takes around 1-2 years, with daily commitment of 2-3 hours, to become a confident Java programmer. You will have a significant avenue of opportunities open after you master Java.