题目内容
阅读下面的程序,分析代码是否能够编译通过,如果能编译通过,请列出运行的结果。否则请说明编译失败的原因。import java.io.*;public class Example01 { public static void main(String[] args) throws Exception {FileInputStream in = new FileInputStream("src.txt");InputStreamReader isr = new InputStreamReader(in);BufferedReader br = new BufferedReader(isr);FileOutputStream out = new FileOutputStream("des.txt");OutputStreamWriter osw = new OutputStreamWriter(out);BufferedWriter bw = new BufferedWriter(osw);String line; while ((line = br.readLine()) != null) {bw.write(line);}br.close();bw.close(); }}
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IO流被分为字节流、字符流两大流类,两者有什么区别?
以下是使用FileInputStream类与FileOutputStream类复制文件。阅读以下代码,并将空处填写完整。import java.io.*;class Test2 { public static void main(String[] args) {String file1, file2;int ch = 0;file1 = "readme.txt";file2 = "readme.bak";try {FileInputStream fis = new; fos=new FileOutputStream(file2);int size= ;System.out.println("字节有效数、"+size);while ((ch = fis.read()) != -1) {System.out.write(ch);fos.write(ch);}fis.close();fos.close();} catch (IOException e) {System.out.println(e.toString());} }}
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