如何用 Java 编写程序将字符从一个文件复制到另一个文件?
java 8object oriented programmingprogramming更新于 2025/9/20 5:00:17
将一个文件的内容逐个字符地复制到另一个文件
示例
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyFiles {
public static void main(String[] args) throws IOException {
//创建一个 File 对象来保存源文件
File source = new File("D:\ExampleDirectory\SampleFile.txt");
//创建一个 File 对象来保存目标文件
File destination = new File("D:\ExampleDirectory\outputFile.txt");
//创建一个 FileInputStream 对象
FileInputStream inputStream = new FileInputStream(source);
//创建一个 FileOutputStream 对象
FileOutputStream outputStream = new FileOutputStream(destination);
//创建一个缓冲区来保存数据
int length = (int) source.length();
byte[] buffer = new byte[length];
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
System.out.println("File copied successfully.......");
}
}
输出
File copied successfully.......
