Studying java (Basic Information Technology Engineer Examination)

I'm studying java for basic information, but I can't get it.

Write this article to organize what you are learning.

First, the structure of the problem is as follows.

(1) Problems (software configuration, introduction of classes and instances) (2) About 4 to 5 program codes are posted ③ About 4 to 5 small questions will be given in a fill-in-the-blank format. ④ The code to be added to the program is shown. ⑤ Asked about changes in operation due to ④

There is a flow that I am aware of when solving problems (I) Read the question sentence (B) Check the answer options (Ha) Read the source code of the problem and guess the answer from the information such as arguments, return values, types, methods, classes, etc. If (ni) (ha) doesn't work, read the question sentence, check the use of the class or method, and guess the answer from it.

I'm trying to solve it like this. Why is the score rate about 30%? I wonder if I'm skipping various steps.

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