Go to Menu > Applications > Extras > Collection (or the folder where you saved the file).
The process was delightfully manual by today’s standards: nokia c2-01 java apps
The Nokia C2-01 is a classic feature phone that was released in 2011, running on the Series 40 operating system. Although it's not as powerful as modern smartphones, it can still support Java applications, which were popular at the time. Go to Menu > Applications > Extras >