J250511/01-JavaSE阶段代码/J20250725/Demo04_FileInputStream.java

package J20250725;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

/**
 * @author WanJl
 * @version 1.0
 * @title Demo04_FileInputStream
 * @description
 * @create 2025/7/25
 */
public class Demo04_FileInputStream {
    public static void main(String[] args) throws IOException {
        //创建文件字节输入流对象
        FileInputStream fis=new FileInputStream("D:/2025年7月25日.txt");

        int by; //每一次要读的字节
        while((by=fis.read())!=-1){
            System.out.print((char)by);
        }
    }
}