FileInputStreamTest

package JBJADV003;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.FileInputStream;
/**
* FileInputStream
*1.read()的方法读取文件内容，返回值是int
*2.需要转换字符
*3.read()方法是单线程
*4.关闭流
*/
public class FileInputStreamTest {

public static void main(String[] args) throws IOException {
FileInputStream fis=new FileInputStream("c:\\myDoc\\hello.txt");
int data;

System.out.println("可读取的字节数: "+ fis.available());

/*
System.out.print("文件内容为: ");
while((data=fis.read())!=-1){
System.out.print(data+" ");
}

System.out.println("\n将字节文件内容转换为字符串后查看到的文件内容为: ");
while((data=fis.read())!=-1){
System.out.print((char)data);
}
*/

fis.close();
}
}