阅读下列代码 import java.io.*; public class Example{ public static void main(String[] args) throws Exception { // 创建一个带缓冲区的输入流 BufferedInputStream bis = new BufferedInputStream(new ________( "src.txt")); // 创建一个带缓冲区的输出流 BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("des.txt")); int len; while ((len = bis.read()) != -1) { bos.write(len); } bis.close(); bos.close(); } } 请说出程序中,下划线位置的答案( )
举一反三
- 下列哪个选项定义了带有缓存的文件字节输入流 A: BufferedInputStream bis = new BufferedInputStream(new FileInputStream(...)); B: BufferedOutputStream bos = new BufferedOutputStream(new FileInputStream(...)); C: FileInputStream fis = new FileInputStream(new BufferedInputStream(...)); D: FileOutputStream fis = new FileOutputStream(new BufferedOutputStream(...));
- 阅读下段代码import java.io.*;public class Example{public static void main(String[] args) throws Exception {FileInputStream fis = new FileInputStream("file.txt");FileOutputStream fos = new FileOutputStream("copy_file.txt");int ch = 0;while((ch =fis.read())!=-1){fos.write(ch);}fos._______;fis.close();}}请说出下划线上，填写的方法名称( ) A: write() B: close() C: available() D: read()
- 【单选题】阅读下段代码 import java.io.*; public class Example{ public static void main(String[] args) throws Exception { FileInputStream fis = new FileInputStream("file.txt"); FileOutputStream fos = n
- 阅读下段代码 import java.io.*; public class Example{ public static void main(String[] args) throws Exception { FileInputStream fis = new FileInputStream("file.txt"); FileOutputStream fos = new FileOutputStream("copy_file.txt"); int ch = 0; while((ch =fis.read())!=-1){ fos.write(ch); } fos._______; fis.close(); } } 请说出下划线上，填写的方法名称
- 阅读下列代码 import java.io.*; public class Example { public static void main(String[] args) throws Exception { FileInputStream in = new FileInputStream("itcast.txt"); int b = 0; while (true) { b = in.______; if (b == -1) { break; } System.out.println(b); } in.close() } } 请说出下划线上,填写的方法名称