About E. printstacktrace ()

When an exception is thrown, there are many methods. First, we will introduce two commonly used methods.
I used system. Out. println (E );
This method prints an exception and outputs the exception, but it is different from another E. printstacktrace () method. The latter also prints an exception, but it also displays a deeper call Information.
For example:
A extends ---> B extends ----> C
When a problem occurs during the creation of a, an exception is thrown.
System. Out. println (e), in addition to the standard exception, only print at a and then output layer by layer.
E. printstacktrace (), in addition to standard exceptions, print
At C
At B
At
... And then investigate the outer layer.
The same is true in the case of an external investigation. The system will return to com. Sun. MIDP. Main.