Help me to Understand java.io package..

[pjerald]

I have many doubts regarding java.io package. let me list some..

1) Here we have reader and writer, And OutputStream and InputStream abstract classes. what is the difference between these terms 'reader' and 'inputStream'
2) i don have an idea when to use which classes.
3) if there is any thumb rule for the usage of these class.. do reply to this thread.

If my third question doesn't mean any thing sensible, please do ignore it.



Thanks,
P.Jerald

[JosAH]

I have many doubts regarding java.io package. let me list some..

1) Here we have reader and writer, And OutputStream and InputStream abstract classes. what is the difference between these terms 'reader' and 'inputStream'
2) i don have an idea when to use which classes.
3) if there is any thumb rule for the usage of these class.. do reply to this thread.

If my third question doesn't mean any thing sensible, please do ignore it.



Thanks,
P.Jerald

Streams are simply byte based,i.e.they don't try to convert bytes to unicode strings
or anything. Readers and Writers are characters based and they do their best to
convert those low level bytes to unicode characterrs.

There are concrete subclasses for Streams, Readers and Writers available (see the
API docs) and the entire IO stuff is based on the Decorator/Wrapper pattern.

Basically you can use Streams for binary IO, Readers and Writers are just for
character based IO.

kind regards,

Jos

[r035198x]

I have many doubts regarding java.io package. let me list some..

1) Here we have reader and writer, And OutputStream and InputStream abstract classes. what is the difference between these terms 'reader' and 'inputStream'
2) i don have an idea when to use which classes.
3) if there is any thumb rule for the usage of these class.. do reply to this thread.

If my third question doesn't mean any thing sensible, please do ignore it.



Thanks,
P.Jerald

Sun's tutorial should be able to shed some light.

[JosAH]

Sun's tutorial should be able to shed some light.

r035198x, have a look what I did in the Java Articles section: we can refer to those
external links through that little article again.

kind regards,

Jos

[r035198x]

r035198x, have a look what I did in the Java Articles section: we can refer to those
external links through that little article again.

kind regards,

Jos

You must go into hiding quick. They're probably looking for you with their pink inflatable axes that go "beep"!

[JosAH]

You must go into hiding quick. They're probably looking for you with their pink inflatable axes that go "beep"!

But why? All I did was post a little article there with a funny title ...

kind regards,

Jos ;-)