J260713/授课代码/c260807/src/course/FileReaderTest.java

package course;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

/**
 * @author WanJl
 * @version 1.0
 * @title FileReaderTest
 * @description
 * @create 2026/8/7
 */
public class FileReaderTest {
    public static void main(String[] args) throws IOException {
        FileReader fr=new FileReader("D:/abc.txt");
        //read () 读取一个字符
//        int ch;
//        while ((ch=fr.read())!=-1){
//            System.out.print((char) ch);
//        }

        //read (char[] c, int off, int len) 读取一部分字符数组
        char[] chars=new char[1024];
        int count;
        while ((count=fr.read(chars))!=-1){
            System.out.print(new String(chars,0,count));
        }
        //释放资源
        fr.close();
    }
}