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- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
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A class for turning a byte stream into a character stream. Data read from the
source input stream is
- PrintStream (java.io)
Fake signature of an existing Java class.
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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