正确生成RandomAccessFile对象的语句的是A.File f=new File("readFile"); RandomAccessFile raF=new RandomAccessFile(f);B.RandomAccessFile raF=new RandomAccessFile(d:\\mydir\\File3.txt,"rw");C.RandomAccessFile raF=new RandomAccessFile("readwriteFile","rw");D.RandomAccessFile raF=new RandomAccessFile("readwriteFile",rw);

正确生成RandomAccessFile对象的语句的是

A.File f=new File("readFile"); RandomAccessFile raF=new RandomAccessFile(f);

B.RandomAccessFile raF=new RandomAccessFile(d:\\mydir\\File3.txt,"rw");

C.RandomAccessFile raF=new RandomAccessFile("readwriteFile","rw");

D.RandomAccessFile raF=new RandomAccessFile("readwriteFile",rw);


相关考题:

以下创建RandomAccessFile类实例对象的代码,哪些是正确的( )。 A、RandomAccessFile(newFile("D:\\itcast\\dir1\\test.java"),"rw")B、RandomAccessFile("D:\\itcast\\dir1\\test.java","r")C、RandomAccessFile("D:\\itcast\\dir1\\test.java")D、RandomAccessFile("D:\\itcast\\dir1\\test.java","wr")

下列选项中,( )是FilterInputStream类构造方法的有效参数。A.无参数B.OutputStream对象C.InputStream对象D.RandomAccessFile对象

Java中哪个类提供了随机访问文件的功能? ( )A.RandomAccessFile类B.RandomFile类C.File类D.AeeessFile类

正确生成RandomAccessFile对象的语句是 ( )A.File f=new File("readFile");B.RandomAccessFile raF=new RandomAcccssFile(d:\mydir\File3.txt,"rw");C.RandomAccessFile raF=new RandomAccessFile("readwriteFile","rw");D.RandomAccessFile raF=new RandomAccessFite("readwriteFile",rw)

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(File类)要得到某目录下的所有文件名,在下列代码的下划线处应填入的内容是(两个下划线的填写内容相同) ________。 ______ pathName=new______(args[0]); String[] fileNames=pathname.list();A.FIlelnputStreamB.FileOutputStreamC.FileD.RandomAccessFile

19、下列哪个叙述是正确的?A.RandomAccessFile流一旦指向文件,就会刷新该文件。B.BufferedReader流可以指向FileInputStream流。C.创建File对象可能发生IOException异常。D.BufferedWriter流可以指向FileWirter流。

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28、(File类)要得到某目录下的所有文件名,在下列代码的下划线处应填入的内容是(两个下划线的填写内容相同) ________。 ______ pathName=new______(args[0]); String[] fileNames=pathname.list();A.FIlelnputStreamB.FileOutputStreamC.FileD.RandomAccessFile