Java – Write an InputStream to a File

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This might happen accidentally if the data in the file just happened to correspond to those characters. But this would be very rare. Most digital data is stored in binary files. There are several reasons why binary files are used.

Write video data to a binary file in java and output are much faster using binary data. Converting a bit integer to characters takes time. Not a great deal of time, but if a file such as an image file contains millions of numbers the accumulated conversion time is significant. Computer games would slow to a crawl if their data were stored in character form.

A binary file is usually very much smaller than a text file that contains an equivalent amount of data. For image, video, and audio data this is important. Small files save storage space, can be transmitted faster, and are processed faster.

A DVD would not have room enough to store a movie if the data were stored in character format. Some kinds of data can't easily be represented as characters. For example, the bytecodes of a Java class file or the machine language of an executable file. You may not usually think of this as data, but of course, it is. The Java compiler reads an input file a source file and writes a binary data file containing its results the bytecode file.

And almost never is a human going to look at the individual data samples, so there is no reason to make it human-readable. For example, humans look at the entire picture of a GIF file, and have little interest in looking at the individual pixels as numbers.

Sometimes a programmer or scientist needs to do this, perhaps for debugging or scientific measurements. But these special occasions can use hex dumps or other specialized programs. Files can be compressed write video data to a binary file in java a utility program like Zip. Often a text file can be compressed to less than half its original size.

Why Binary Files are Needed Most digital data is stored in binary files. Can the compressed text file be read with a FileReader stream?

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Lets take an example and try to understand in terms of byte and its interpretation whats happening. What it wants to say is save the data in a way based on the type. Understanding the difference between Binary and text files using Java. By BytePadding on Apr 07, in Java. Understanding the difference between Binary and Text Files Lets start with the basic ideas.

A file is saved on Hard-disk. A hard-disk only has two stated magnetized demagnetized which represent the two states of binary. Any file saved on hard-disk has to follow the semantics of the two states. Secondary storage just stores an array of bits. How to encode or decode the 8 bits byte is not known to hard-disk.

Letter words and symbols are unknown to the secondary storage. Key Take Aways All files are binary in nature. Text file is a special case of binary file, where we encode the data in a way that it is human readable when read through a text editor A text file saved on secondary storage is store in binary form.

Text files is like a protocol that one follows so that the writer writes in a specific way encode , the text reader process decodes it in a way, that its become human readable.

Lets take a String: What it means is Save it in a way that when the text editor reads it , it should be able to display The bits sequence saved on disk will be: Hence text format like any other protocol where in the reader and write have predefined way of reading and writing data so that the final outcome is human readable, as the lookup is being done from UTF-8 sequence.

If one needs to save 0 irrespective of it is a char or int in a text file It will need one Byte to save it. Every thing is treated as a symbol in text file, from the symbol based on the sequence it is mapped to using UTF-8 encoding the bits sequence is saved.

Integer 12 will be treated as String While reading the binary file, the schema which was used to write the data, needs to be present as there is no information present on how to decode the bytes.

Do remember if you have two bytes then can be decoded as char or short in Java. The interpretation is based on the schema with which you have written. Int 1 in Binary will be saved as If the binary of int 1 is read by a text editor it will be displayed as