Java 删除文件1 Java 拷贝文件 Java 删除文件2 Java 删除文件1 import java.io.*; public class Main { public static void main(String[] args) { try { BufferedWriter out = new BufferedWriter (new FileWriter("filename")); out.write("aString1\n"); out.close(); boolean success = (new File("filename")).delete(); if (success) { System.out.println("The file has been successfully deleted"); } BufferedReader in = new BufferedReader(new FileReader("filename")); String str; while ((str = in.readLine()) != null) { System.out.println(str); } in.close(); } catch (IOException e) { System.out.println("exception occoured"+ e); System.out.println("File does not exist or you are trying to read a file that has been deleted"); } } } Java 拷贝文件 Java 删除文件2