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();
}
管输天然气时,如果天然气中所含水分过多,会给管道运行带来什么问题?一般依靠测量哪个参数来监视含水量?采用什么仪器测量该参数,原理如何?
She chose ginger _____ garlic for cooking the Greek food.
A. taking place of
B. replace of
C. place of
D. instead of
有效数字2位的是:()
A. pK=7.263
B. pH= 13.14
C. 7.8200
D. 5.301
E. 0.001