In Java, we can use memoization with a HashMap to cache expensive function calculations so we retrieve the value without having to perform the expensive calculations again. Memoization is a specific form of caching that is employed at the level of...
Mastering the fundamentals of cache for Systems Design interviews is crucial since this knowledge will be required very often. The cache will significantly increase performance when designing your systems, even more nowadays when systems are in the...
Since the beginning of my career, I had to deal with databases by inserting, updating, searching, and deleting. Databases concepts are crucial for every developer to understand because they are present in nearly all applications. Nowadays, with...
Learn the tricks of a wrapper class, the difference between equals and ‘==’ with Java by having fun guessing on this Java Challenge!