Is Java difficult? ? ? ?

zhaozj2021-02-16  140

Dear brother, Xiaogai Java is in the past months, the more they learn depressed, for the method, class, and the UTIL set java.lang after reading the book, it will not be flexible, I really don't know how to learn next step. What is good opinions or instructions, welcome more advice, and so on the younger brother, you can help more people need help here !!!

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