How to write only two decimal places?

Question

Java

I have three numbers that look like this:
x = 0.154848784
y = 0.88787754
z = 0.4848484455
At the same time, during the execution of the program, these numbers change and the number of decimal places too, I need the program to write to me only 2 decimal places of these values.
For example: x = 0.154848784 and in the console it should write x = 0.15

Answer 1

String.format("%.2f", x);

Answer 2

How to print has already been explained to you. And here is the answer to the "why" question: Float in C, 0.41 is actually 0.40999