Error Class

Question

Question how do you contain Errors{Stack Throws) in some other class
java.lang.Throwable has Error and Exception  as sub classes
and Error.java has E.print||fillStackTrace(*);as methods
I want to use this method to to contain a exception that is occuring in some other class  EX
[code]
class a
public a()
try
System.out.println(1/0);
catch(Exception e)
e.printStackTrace();
class b
public static void main(String a[])
try{
new a()
}catch(Exception e){System.out.println(e.getMessage());e.printStackTrace();
//out here what is the best way not to get the stack and just get
//message
Though it is a stupid Question because even the exception will follow the hierarchy it could be usefull as it would
be usefull to know were the exception lies and not get a
un-controlable stack trace wich we cannot read and rectify