下述哪一项能够将文本“<end>”加到文件file.txt的末尾?( )
a.OutputStream out=new FileOutputStream("file.txt");
Out.writeBytes("<end>/n");
b.OutputStream OS=new FileOutputStream("file.txt",true);
DataOutputStream out=new DataOutputStream(os);
out.writeBytes ("<end>/n");
c.OutputStream OS=new FileOutputStream ( "file.txt");
DataOutputStream out=new DataOutputStream(os);
out.writeBytes("<end>/n");
d.OutputStream OS=new OutputStream("file.txt",true);
DataOutputStream out=new DataOucputStream(os);
out.writeBytes ("<end>/n");哪一项是对的啊?太混淆不清了!
a.OutputStream out=new FileOutputStream("file.txt");
Out.writeBytes("<end>/n");
b.OutputStream OS=new FileOutputStream("file.txt",true);
DataOutputStream out=new DataOutputStream(os);
out.writeBytes ("<end>/n");
c.OutputStream OS=new FileOutputStream ( "file.txt");
DataOutputStream out=new DataOutputStream(os);
out.writeBytes("<end>/n");
d.OutputStream OS=new OutputStream("file.txt",true);
DataOutputStream out=new DataOucputStream(os);
out.writeBytes ("<end>/n");哪一项是对的啊?太混淆不清了!
第二个参数为true表示为从文件末尾添加 故选B