40黑马币
最佳答案package it.BufferedWriterDemo;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;
/*
* d:\\class\\*.java复制到f:\\hello\\*.txt
*/
public class CopyFileDemo {
public static void main(String[] args) throws IOException {
File file1 = new File("d:\\cla ...
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