File Reader对象使用（）方法把图片显示出来A、read As Binary StringB、read As TextC、read As Date URLD、read As Array Buffer
File Reader对象使用（）方法把图片显示出来
- A、 read As Binary String
- B、 read As Text
- C、 read As Date URL
- D、 read As Array Buffer
相关考题：
In real life, what kind of reading serves people’s immediate needs or wishes?() A.read for entertainmentB.read for survivalC.read for learningD.read for life
You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM) report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns are indexed.Identify three possible reasons for this.（）A. Missing or stale histogram statisticsB. Undersized shared poolC. High clustering factor for the indexesD. High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameterE. Oversized buffer cache
下列不属于FileInputStream输入流的read()成员函数的是( )。A．int read (byte b[]，int offset，int len)B．int read (int line)C．int read ()D．int read (byte b[])
要从“file.dat”文件中读出第10个字节存到变量C中，下列______方法是合适的。A．FileInputStream in=new FileInputStream("file.dat")；in.skip(9);int c=in.read( )；B．FileInputStream in=new FileInputStream("file.dat")；in.skip(10);int c=in.read( )；C．FileInputStream in=new FileInputStream("file.dat")；int c=in.read( )；D．RandomAccessFile in=new RandomAccessFile("file.dat")；in.skip(9)；int c=in.readByte( )；
下列程序使用系统标准输入System.in从键盘获得输入字符串，请选择正确的一项填入下列程序的横线处。 import java.io.*; public class ex26 { public static void main(String args[]) { byte buffer[] = new byte[128]; int n; try { n = for(int i = 0; i ＜ n; i++) System.out .print ( (char)buffer [i] ); catch (IOException e) { System.out.print (e); } } }A．System.in.read(buffer)B．system.in.read(buffer)C．System.in.read0D．System.in(buffer)
SNMPv2的5种访问级别由小到大排列正确的是（）。A、not-accessible，accessible-for-notify，read-only，read-write，read-createB、not-accessible，read-only，read-write，read-create，accessible-for-notifyC、read-only，read-write，read-create，accessible-for-notify，not-accessibleD、read-only，read-write，read-create，not-accessible，accessible-for-notify
要从文件" file.dat"文件中读出第10个字节到变量C中，下列哪个方法适合？ （）A、 FileInputStream in=new FileInputStream（"file.dat"）； in.skip（9）； int c=in.read（）；B、 FileInputStream in=new FileInputStream（"file.dat"）； in.skip（10）； int c=in.read（）；C、 FileInputStream in=new FileInputStream（"file.dat"）； int c=in.read（）；D、 RandomAccessFile in=new RandomAccessFile（"file.dat"）； in.skip（9）； int c=in.readByte（）；
下列不属于FileInputStream输入流的read（）成员函数的是（）A、 int read（）；B、 int read（byte b[]）；C、 int read（byte b[]，int offset，int len）；D、 int read（int line）；
InputStream子类对象继承了InputStream类的方法read（），read（）方法的定义有（）。A、publicintread（）B、publicintread（byteb[]）C、publiccharread（）D、publiccharread（byteb[]）
要从文件"file.dat"中读出第10个字节到变量c中，下列哪个方法适合？（）A、FileInputStream in=new FileInputStream（"file.dat"）；in.skip（9）；intc=in.read（）B、FileInputStream in=new FileInputStream（"file.dat"）；in.skip（10）；intc=in.read（）C、FileInputStream in=new FileInputStream（"file.dat"）；intc=in.read（）D、RandomAccessFile in=new RandomAccessFile（"file.dat"）；in.skip（9）；intc=in.readByte（）
In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）A、 N times the stripe unit sizeB、 N times the VMM minfree parameterC、 The same value as that of the VMM maxfree parameterD、 The same value as that of the VMM maxrndwrt parameter
You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（）A、 take data files from the read-only tablespace offline before performing a recoveryB、 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the databaseC、 drop the read-only tablespace and re-create the tablespace after recoveryD、 perform a recovery； status of the tablespace in control file will be changed automatically
One of the tablespaces is read/x7fonly in your database. The loss of all control files forced you to re/x7fcreate the control file. Which operation do you need to perform after re/x7fcreating the control file and opening the database？（）A、drop and recreate the readonly tablespacesB、rename the readonly data files to their correct file namesC、change the tablespace status from read/write to readonlyD、recreate the readonly tablespace because it is automatically removed
You have a read/x7fonly tablespace on read/x7fonly media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read/x7fonly tablespace was read/write when the control file was backed up. What should you consider？（）A、drop the readonly tablespace and recreate the tablespace after recoveryB、take data files from the readonly tablespace offline before performing a recoveryC、perform a recovery; status of the tablespace in control file will be changed automaticallyD、recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database
You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM) report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns are indexed. Identify three possible reasons for this.（）A、Missing or stale histogram statisticsB、Undersized shared poolC、High clustering factor for the indexesD、High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameterE、Oversized buffer cache
In which of the following scenarios is a tablespace recovery required？（）A、 when recovering a lost read-only tablespace from a read-only tablespace backupB、 when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in ARCHIVELOG modeC、 when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in NOARCHIVELOG mode and the changes in the online redo log files have been overwrittenD、 when recovering a lost read-only tablespace from a read-only tablespace backup using the backup of the control file， the control file was created using the ALTER DATABASE BACKUP CONTROLFILE TO TRACE statement， and this statement was issued when the tablespace was read-only
The page will be posted to the server after one or more image files are selected for upload.You need to ensure that all unuploaded files are saved to the server within one call to a single event handler. What should you do？ （）A、Read the HttpRequest.Files property and call the HttpPostedFile.SaveAs method for each file.B、Read the HttpRequest.inputStream property and call the System.Io.File.WriteLines method for each file.C、Read the HttpRequest.inputStream property and call the HttpResponse.WriteLine method for each file.D、Read the HttpRequest.Files property and call the System.Io.File.WriteLines method for each file.
单选题SNMPv2的5种访问级别由小到大排列正确的是（）。Anot-accessible，accessible-for-notify，read-only，read-write，read-createBnot-accessible，read-only，read-write，read-create，accessible-for-notifyCread-only，read-write，read-create，accessible-for-notify，not-accessibleDread-only，read-write，read-create，not-accessible，accessible-for-notify
单选题One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create the control file. Which operation do you need to perform after re-creating the control file and opening the database？（）A drop and re-create the read-only tablespacesB rename the read-only data files to their correct file namesC change the tablespace status from read/write to read-onlyD re-create the read-only tablespace because it is automatically removed
单选题File Reader对象使用（）方法把图片显示出来Aread As Binary StringBread As TextCread As Date URLDread As Array Buffer
单选题In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）A N times the stripe unit sizeB N times the VMM minfree parameterC The same value as that of the VMM maxfree parameterD The same value as that of the VMM maxrndwrt parameter
单选题假设file是文本文件对象，下列选项中，哪个用于读取一行内容？（）Afile.read（）Bfile.read（200）Cfle.readlineDflereadlies（）