Java 教程
Java 實例 - 將文件內容復制到另一個文件
Java 實例以下實例演示了使用 BufferedWriter 類的 read 和 write 方法將文件內容復制到另一個文件：
Main.java 文件
import java.io.*;
public class Main {
public static void main(String[] args) throws Exception {
BufferedWriter out1 = new BufferedWriter(new FileWriter("srcfile"));
out1.write("string to be copiedn");
out1.close();
InputStream in = new FileInputStream(new File("srcfile"));
OutputStream out = new FileOutputStream
(new File("destnfile"));
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
BufferedReader in1 = new BufferedReader(new FileReader("destnfile"));
String str;
while ((str = in1.readLine()) != null) {
System.out.println(str);
}
in1.close();
}
}
以上代碼運行輸出結果為：
string to be copied其他擴展