working with calendar in java?

Question

Java

You need to somehow take, for example, all the days of the next month except Saturday, Sunday, you do not need to draw a console application, although you can draw

Answer 1

Take one of the open source solutions like https://www.joda.org/joda-time/ .
The main thing to understand is that java will not know about public holidays in the Russian Federation, and this may affect weekends.

Answer 2

You need a package of standard java classes to work with time - java.time . Learn, understand, apply.
If you write in java before 8, then yes, joda-time will help you.
And if you are completely lazy and uninitiative, then here it is .
PS If you still need to know about weekends, holidays and pre-holiday days, then I will take this opportunity to advertise one of my home projects - productive-calendar . True, it is in kotlin. And it doesn't exactly do what you want.
However, you might grab something for yourself. More precisely, I get information about weekends, holidays and pre-holiday days from the open data portal, parse it and save it as json, which I then use to perform queries like "How many working days between dates", etc.
A friend of mine has a similar project on groovy about pulling out a production calendar from popular sites in json - holidays-calendar