Do I need to learn all the string methods if I want to learn java?

Question

Now I am learning strings. Is that we have to learn every string methods to solve programs?

Answer 1

Go slow with new concepts.
You don't need to learn them all at once. While solving problems automatically the needs for certain string method will comes to your mind. Then you can Learn but knowing in advance some string functions functionality will help you.

Answer 2

24 is enough, if I don't count same names