Normally you should not close the stream. The servlet container will automatically close the stream after the servlet is finished running as part of the servlet request life-cycle. For instance, if you closed the stream it would not be available if you implemented a Filter. Having said all that, if you do close it nothing … Read more
There seem to be many links and other such stuff, but no actual code using pipes. The advantage of using java.io.PipedInputStream and java.io.PipedOutputStream is that there is no additional consumption of memory. ByteArrayOutputStream.toByteArray() returns a copy of the original buffer, so that means that whatever you have in memory, you now have two copies of … Read more
char a = 0xab; cout << +a; // promotes a to a type printable as a number, regardless of type. This works as long as the type provides a unary + operator with ordinary semantics. If you are defining a class that represents a number, to provide a unary + operator with canonical semantics, create … Read more
I need to store data into files inside .jar file and read it again No you don’t. Instead store the ‘default’ file inside the Jar. If it is changed, store the altered file in another place. One common place is a sub-directory of user.home. When checking for the file, first check the existence of an … Read more