1. Use the output stream out as the output stream of PrintStream. It will not be automatically flushed and the default character set will be used.
PrintStream out = new PrintStream(OutputStream out);
2. Create a FileOutputstream corresponding to File, and then use FileOutputstream as the output stream of Printstream.
PrintStream out = new PrintStream(File file);
Create a FileOutputStream corresponding to Filename, and then use FileoutputStream as the output stream of PrintStream.
PrintStream out = new PrintStream(String fileName, String charsetName);
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