Hi guys hope you fine
I have a request and question, for my request I would like from you to recommend me
which books and tutorials that I may follow help me to understand how to read and write files in java I really need to know that. and for my question is how to make a float random ends with five or zero only. For example 0.25 , 0.30 , 0.35 , 0.40 , 0.45 ,0.50 , 0.55 , and so on till number one. I don't need a float numbet appears to me such as 0.23 , 0.14 , 0.78 , 0.99 , 0.61 , 0.12 , etc ... so how it's done that


thanks,
my regard

how about you just store it as an integer which when divided by 20 yields your number?

hi reading from file is not hard. <<Thinking java>> may give you some help.

I would do it as such. Assuming you want the floating number to be displayed to only 2dp.

• I would first, generate an integer between 1-9, then divide it by 10.
  
• Then I would have a second random function that generates either 0.05 or 0.0
  
• I would then add the two together.

So for example:-

7 / 10 = 0.7
0.05
0.7 + 0.05 = 0.75