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|Like Discuss Correct / Improve  java   io   input output   file io  file handling|
|What is a stream and what are the types of Streams and classes of the Streams?|
|Tell something about BufferedWriter ? What are flush() and close() used for ?|
|What is Scanner class used for ? when was it introduced in Java ?|
|What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?|
|What is the purpose of the System class?|
|Difference between Scanner and BufferedReader ? Which one is faster and Why ?|
|Which of the following is true ?|
|How and when the Buffer is cleared when using Buffered Writer Classes ?|
|How does encoding affect using Reader / writer classes or Stream classes in Java ?|