Question

java 如何读取文档中的内容 并打印

Answer 1

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class Brdemo {
public static void main(String[] args) throws IOException {

FileInputStream fis
= new FileInputStream(
"src/day03/BrDemo.java");//要读的文件路径

InputStreamReader isr
= new InputStreamReader(fis);//字符流

BufferedReader br
= new BufferedReader(isr); //缓冲
String line = null;

while((line=br.readLine())!=null){//字符不等于空
System.out.println(line);//一行一行地输出
}
br.close();//关闭文件
}
}