文件字节流输出 FileOutputStream

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
/**
 * 文件字节流输出
 * FileOutputStream
 * @author cg
 */
public class Demo02 {
    public static void main(String[] args) throws Exception {
        //1.
        FileOutputStream fos = new FileOutputStream("c:\\Users\\cheng\\Desktop\\code\\bbb.txt",true);
        //2.写入文件
/*        fos.write(97);
        fos.write('b');
        fos.write('c');*/

        String string = "hello,world";
        fos.write(string.getBytes());
        //.关闭
        fos.close();

    }
}