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Article > Uploading file over the web
Uploading files over the network is not an easy task. It involves considerable challenges in developing a solution that works for all file sizes. Uploading files are prone to failures, users drop, and security risks. On each failure, the file needs to be re-uploaded: which adversely affect associated user experience.
There are many techniques and design decisions you can choose while developing the functionality of upload files. This article goes through some of them.
Snippet > Frequency Map in Java 8+
Calculating the frequency of items is a recurring problem, especially in competitive programming. A frequency map of array or List can be constructed succinctly using Stream.