Java中使用Stream进行文件的复制

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

public class FileCopyExample {

public static void main(String[] args) {

try {

FileInputStream sourceFile = new FileInputStream("sourceFile.txt");

FileOutputStream destinationFile = new FileOutputStream("destinationFile.txt");

byte[] buffer = new byte[1024];

int length;

while ((length = sourceFile.read(buffer)) > 0) {

destinationFile.write(buffer, 0, length);

}

sourceFile.close();

destinationFile.close();

} catch (IOException e) {

e.printStackTrace();

}

}