I started using NetBeans, however, I have switched to using just a plain text editor for the time being. I feel that I learn more about the language that way.
Do you have any other suggestions? Text editors are great, but it's kind of like pedaling a dump truck if you're billing clients. You might try hprof if you want to avoid doing the profiling in an ide: java. Thanks jskaggz. I will check out hprof.
BTW, I am making this application for myself, so I am not really on a timetable, but I agree that if it were for a client, I would definitely use an ide to speed it along. When you use the BufferedInputStream, do you usually specify a particular size chunk for it to buffer, or do you let it automatically decide? This depends. As Stephen C said above, if this number doesn't coincide well with the data page size used in the syscalls say 4k then you just shot yourself in the foot by creating a bottleneck.
Think of it like filling a sandbag with a shovel. Just a side note that I am an advocate of writing good code. But if you are just starting out, there is nothing wrong with getting it to work and then optimizing later. These things can be rabbit holes. JasonMcCreary When to use read byte by byte and when to use read byte[] array of byte. As I think reading array is always better. OR BufferedInputStream.? Octavians Octavians 7. Excuse me - what is this?
Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Here is an example of how to create a ReusableBufferedInputStream :. When you have created a ReusableBufferedInputStream you need to set the InputStream on it to use as underlying data source. The setSource method actually returns a reference to the ReusableBufferedInputStream , so you can actually create a ReusableBufferedInputStream and set the source in a single instruction:.
When you are done using the ReusableBufferedInputStream you need to close it. Closing it will only close the underlying source InputStream. Here is how it looks to reuse a ReusableBufferedInputStream :.
Here is the code for the ReusableBufferedInputStream described above. Note, that this implementation only overrides the read method of the InputStream class that it extends. The rest of the InputStream methods have been left out to keep the code shorter - but you can implement them yourself in case you need them. Tutorials About RSS. Java IO. Optimal Buffer Size for a BufferedInputStream You should make some experiments with different buffer sizes to find out which buffer size seems to give you the best performance on your concrete hardware.
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The maximum read ahead allowed after a call to the mark method before subsequent calls to the reset method fail. The value of the pos field at the time the last mark method was called. Creates a BufferedInputStream and saves its argument, the input stream in , for later use. Creates a BufferedInputStream with the specified buffer size, and saves its argument, the input stream in , for later use. Returns an estimate of the number of bytes that can be read or skipped over from this input stream without blocking by the next invocation of a method for this input stream.
Closes this input stream and releases any system resources associated with the stream. See the general contract of the mark method of InputStream. Tests if this input stream supports the mark and reset methods. See the general contract of the read method of InputStream.
Reads bytes from this byte-input stream into the specified byte array, starting at the given offset. See the general contract of the reset method of InputStream. See the general contract of the skip method of InputStream.
Field Detail buf protected volatile byte[] buf The internal buffer array where the data is stored. When necessary, it may be replaced by another array of a different size. The index one greater than the index of the last valid byte in the buffer.
This value is always in the range 0 through buf.
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