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the DataInputStream and
DataOutputStream classes are high - level streams that contain methods for reading and writing
the eight Java primitive types as well as String objects




When I deal with a file, I save text there, and read it somewhere.

only text.As C or PHP

What is the usage of save as "primitive types"?

May you show by an example?

 
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abalfazl hossein wrote:
When I deal with a file, I save text there, and read it somewhere.

only text.As C or PHP

What is the usage of save as "primitive types"?



Not all files need to be text files. It is perfectly valid to save integers, floats, doubles, etc. to a binary file, in their native representation.

Now, of course, if you only believe in using text files, then these methods probably won't ever be used by you.

Henry
 
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