All right, fellow students. Now we start a new chapter. It is an interview question related to Java collections. Believe me, when it comes to collections, you must be familiar with them. In our previous courses or studies, which collections have you used more? List, and Map, right?
Although, you are very familiar with using it, but during the interview, the interviewer will not ask some usage questions, so why? Of course, there are some underlying principles. Then our class this time is mainly to explain the high-frequency interview questions during the interview process.
It will help you to deal with the interviewer better. Next, let's take a look at what classes are in the Java collection, and let's mark them, which are high-frequency interview questions? Let's take a look at this picture.
This figure lists all the collections currently provided by Java. It is divided into two categories. The first one is called Collection single-column collection, and the second is Map double-column collection.
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