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Whichmethodimplementationswillwritethegivenstrin

2021-05-05   

Whichmethodimplementationswillwritethegivenstringtoafilenamed"file",usingUTF8encoding?()

IMPLEMENTATIONa:

publicvoidwrite(Stringmsg)throwsIOException{

FileWriterfw=newFileWriter(newFile("file"));

fw.write(msg);

fw.close();

}

IMPLEMENTATIONb:

publicvoidwrite(Stringmsg)throwsIOException{

OutputStreamWriterosw=newOutputStreamWriter(newFileOutputStream("file"),"UTF8");osw.write(msg);

osw.close();

}

IMPLEMENTATIONc:

publicvoidwrite(Stringmsg)throwsIOException{FileWriterfw=newFileWriter(newFile("file"));

fw.setEncoding("UTF8");

fw.write(msg);

fw.close();}

IMPLEMENTATIONd:

publicvoidwrite(Stringmsg)throwsIOException{FilterWriterfw=FilterWriter(newFileWriter("file"),"UTF8");

fw.write(msg);fw.close();

}

IMPLEMENTATIONe:

publicvoidwrite(Stringmsg)throwsIOException{

OutputStreamWriterosw=newOutputStreamWriter(newOutputStream(newFile("file")),"UTF8");

osw.write(msg);

osw.close();

}

正确答案:

参考B

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