字符流Reader和Writer

字符流Reader和Writer

package Java10;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

//字符流Reader和Writer
public class ReaderWriter {
    public static void main(String[] args) throws IOException {
        //创建字符流
        FileReader r = new FileReader("D:/java/test1/src/a.txt");
        //创建字符数组,每次读取2个字符
        char[] c = new char[2];
        //将读取的数据转换成String
        String s = new String(c);
        System.out.println(s);
        r.close();

        FileWriter w = new FileWriter("D:/java/test1/src/b.txt");
        w.write("abc");
        w.close();
    }
}