Java - More Input and Output

Java module J713

More Input and Output

Exercises, examples and other material relating to training module J713. This topic is presented on public courses Learning to Program in Java, Java Bootcamp, Java Programming for the Web

This module covers reading and writing from and to files, other processes, network connections, keyboards and screens. Also how to find out if an object exists on your file system and if it does, to get more information about it.

Related technical and longer articles

Formatting to a fixed number of decimal places

Articles and tips on this subject		updated
2420	Exceptions in Java - why and how Although it's common practise to include a static main test program in a class, it's something that newcomers can have some difficulty following ... so we don't do it too early on the course - we keep classes and programs that use those classes (even if they are just test programs) each in their own ...	2009-09-25

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Examples from our training material

Javafgrep.java	Example for modification exercise
bratton.java	Formatted Printing
farleigh.java	Checking file status, reading and writing
snip1	Code snippet - reading from a file
snip2	File existence checking
snip3	Writing to a file
wellreader.java	Sample Input class from earlier courses and modules
winsley.java	File Manipulation examples

Background information

This module is available under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Overview.
The Wellreader class.
Input/output from basics.
Streams.
Writing to a file.
Formatted output.
Reading from a file.

Complete learning

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