JAVA 中文件读写函数BufferedReader 和 BufferedWriter 的使用

import java.io.*;

import javax.swing.*;

import java.lang.*;

import static javax.swing.JFrame.*;



public class Main {

	public static void main(String args[]) {

		try {

			String t[] = { "小明，男，20", "小红，女，21", "小刚，男，29" };

			FileWriter fr = new FileWriter("A.txt");//这里也可以用File来构造

			BufferedWriter br = new BufferedWriter(fr);//利用FileReader来构造

			for (String s : t) {

				br.write(s);

				br.newLine();//腐乳换行

			}

			br.close();

			fr.close();

			FileReader fr1 = new FileReader("A.txt");

			BufferedReader br1 = new BufferedReader(fr1);

			String s = br1.readLine();

			while (s != null) {

				System.out.println(s);

				s = br1.readLine();

			}

			br1.close();

			fr1.close();

		} catch (IOException e) {

			System.out.println(e.getMessage());

		}

	}

}