"Toolkit" Close Closeable's Simple tool class

There are many classes of connection classes in Java that implement Java.io.Closeable, and shutting down resources is a repetitive labor, and writing a simple tool class avoids duplication of effort.

> JDK7.0, which classes implement java.io.Closeable?

There are also these interfaces that inherit this interface

> Simple Tool Class

Although simple, also record it, lest next time write again.

Importjava.io.Closeable;Importjava.io.IOException; Public classCloseablecloser { Public Static voidClose (closeable c) {if(c = =NULL) {            return; }                Try{c.close (); } Catch(IOException e) {//TODO notifies developers that an exception has occurred: such as log printingSystem.out.println ("Exception when closing.");        E.printstacktrace (); }    }}

Toolkit to close closeable simple tool class