标签:blank imp htm tput target oid 文件的 log scores
不管是字节流或者字符流,在java中他们使用的过程都很相似。对于一个输入流:
文件输入流可以使用构造方法FileInputStream(String)创建
下面的语句创建了一个文件输入流:
FileInputStream fis = new FileInputStream("scores.dat");
下面的语句使用while循环来读取文件输入流对象df中的数据:
int newBytes = 0; while (newBytes != -1) { newBytes = df.read(); System.out.print(newBytes + " "); }
以字节方式读取源程序对应的类文件,并显示出来。
//ReadBytes.java import java.io.*; public class ReadBytes { public static void main(String[] args) { try{//create file input stream file FileInputStream file = new FileInputStream("ReadBytes.class"); boolean eof = false; int count = 0; while(!eof)//file not end { int input = file.read();//read one character System.out.print(input + " ");//output the character if(input == -1) eof = true; else count++; } file.close(); System.out.print("\n Bytes read:" + count);//output the count } catch(IOException e) { System.out.println("Error -- " + e.toString()); } } }
转载来自:http://www.cnblogs.com/gride-glory/p/7719075.html
标签:blank imp htm tput target oid 文件的 log scores
原文地址:http://www.cnblogs.com/lls1350767625/p/7757646.html