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javaµÄ¿â½«³ÌÐòÓëÊäÈëÓйصÄÀà¶¼´ÓInputStream¼Ì³Ð£¬ÓëÊä³öÓйصÄÀà¶¼´ÓOutStream¼Ì³Ð¡£
ÒÔǰûÓÐÕÆÎÕµÄÏà¹ØÀà SequenceInputStream ½«Á½¸ö»ò¸ü¶àµÄinputStream ת»»³Éµ¥¸ö¶ÔÏóʹÓá£
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3 ÊäÈë
¶ÔÒ»¸öÎļþ½øÐÐÊäÈë²Ù×÷£¬ÐèÒªÒ»¸öFileInputStream ¶ÔÏó£¬ÎªÌá¸ßËÙ¶ÈÐèÒª¶ÔÎļþ½øÐлº³å´¦Àí BufferedInputStream £¬ÎªÁËÒÔ¸ñʽ»¯µÄÐÎʽ¶ÁÈ¡Êý¾Ý£¬ÎÒÃÇʹÓÃÁËDataInputStream À´½øÐд¦Àí¡£
DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(args[0])));
4 ¿ìËÙÎļþÊäÈë
class InFile extends DataInputStream {
public InFile(String fileName) throws FileNotFoundException{
super(new BufferedInputStream(new FileInputStream(fileName)));
}
public InFile(File file) throws FileNotFoundException{
super(new BufferedInputStream(new FileInputStream(file.getPath())));
}
}
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5 Reader Writer
inputstream ÊÇ×Ö½ÚÁ÷ £¬¶þreaderÊÇ×Ö·ûÁ÷ ´«µÝunicode ¡£
ҪʹÓÃreadLine()Ó¦¸ÃʹÓÃBufferedReader ,¶þ²»Ó¦¸ÃÔÙʹÓÃDataInputStream
6 ÖØµ¼Ïò±ê×¼IO package cn.bupt.io;
import java.io.*;
public class Redirect {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
BufferedInputStream in = null ;
try {
in = new BufferedInputStream(new FileInputStream(args[0]));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
PrintStream out = null ;
try {
out = new PrintStream(new BufferedOutputStream(new FileOutputStream(args[1]))) ;
} catch (FileNotFoundException e) {
e.printStackTrace();
}
System.setIn(in) ;
System.setOut(out) ;
System.setErr(out) ;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String s = null ;
try {
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