byte java用于文件IO的示例

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;

public class FileIOExample {public static void main(String[] args) {File inputFile = new File(“input.txt”);File outputFile = new File(“output.txt”);

    try {        // 读取文件内容并写入到输出文件        FileInputStream input = new FileInputStream(inputFile);        FileOutputStream output = new FileOutputStream(outputFile);        byte[] buffer = new byte[1024];        int bytesRead;        while ((bytesRead = input.read(buffer)) != -1) {            output.write(buffer, 0, bytesRead);        }        // 关闭输入输出流        input.close();        output.close();        System.out.println("文件复制成功！");    } catch (IOException e) {        System.out.println("文件复制失败：" + e.getMessage());    }}

}