Should i initialize the instance variables or not?

Question

hi guys ,i am trying to learn java therefore if i miss something sorry.
for example i have like this a class
is it good thing to always initialize those variables or initialize like in this exam and initialize with constructor too ?
public class SomeClass
     private double principal=1.0;
     private double rate=0.1;
     private int    years=1;
     private int    times=1;
     public static void main(String[] args)
}

Answer 1

878144 wrote:
i guess i explicitly initialize them or i dont however java does it for me even i dont explicitly say int variable=0; however java will do it i guess also it doesnt make sense to me i do or compiler does.No idea what you're saying here. Try writing proper sentences with proper capitalization, grammar, spelling, and punctuation.
why some people say yes some of them say no.if u dont do it then java does it also same thing.Reason to do it: Makes it clear what you want the initial value to be, and that you didn't forget to initialize it.
Reasons not to do it: Redundant and cluttersome. Also, can lead to unexpected behavior in some cases involving subclasses.
Ultimately, the decision is more about personal preference than anything.