Ok, you should be using a servlet not a JSP but if you really need to… add this directive at the top of your page: Or in the jsp-config section your web.xml Also flush/close the OutputStream and return when done.
Try this : I assume your text file is on sd card following links can also help you : How can I read a text file from the SD card in Android? How to read text file in Android? Android read text raw resource file
defines a primitive int. defines an array that has space to hold 1 int. They are two very different things. The primitive has no methods/properites on it, but an array has properties on it (length), and methods (specifically its on clone method, and all the methods of Object). Arrays are a bit of a weird … Read more
You could return an Integer instead of an int, returning null on parse failure. It’s a shame Java doesn’t provide a way of doing this without there being an exception thrown internally though – you can hide the exception (by catching it and returning null), but it could still be a performance issue if you’re parsing hundreds of thousands of … Read more
From the Java 11 BigDecimal docs: When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED), arithmetic operations are exact, as are the arithmetic methods which take no MathContext object. (This is the only behavior that was supported in releases prior to 5.) As a corollary of computing the exact result, the rounding mode setting of a MathContext object with … Read more
defines a primitive int. defines an array that has space to hold 1 int. They are two very different things. The primitive has no methods/properites on it, but an array has properties on it (length), and methods (specifically its on clone method, and all the methods of Object). Arrays are a bit of a weird … Read more
You could return an Integer instead of an int, returning null on parse failure. It’s a shame Java doesn’t provide a way of doing this without there being an exception thrown internally though – you can hide the exception (by catching it and returning null), but it could still be a performance issue if you’re parsing hundreds of thousands of … Read more
You need to add it like this.
It’s important to understand that there are two aspects to thread safety. execution control, and memory visibility The first has to do with controlling when code executes (including the order in which instructions are executed) and whether it can execute concurrently, and the second to do with when the effects in memory of what has been done … Read more