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InputStream ÖÐµÄ FileInputStream ÀàËÆÒ»¸öÎļþ¾ä±ú£¬Í¨¹ýËüÀ´¶ÔÎļþ½øÐвÙ×÷£¬ÀàËÆµÄ£¬ÔÚ
OutputStream ÖÐÎÒÃÇÓÐ FileOutputStream Õâ¸ö¶ÔÏó¡£
ÓÃFileInputStream À´¶ÁÈ¡Êý¾ÝµÄ³£Ó÷½·¨ÊÇ£º
FileInputStream fstream = new FileInputStream(args[0]);
DataInputStream in = new DataInputStream(fstream);
Óà in.readLine() À´µÃµ½Êý¾Ý£¬È»ºóÓà in.close() ¹Ø±ÕÊäÈëÁ÷¡£
ÍêÕû´úÂë¼û Example 1¡£
ÓÃFileOutputStream À´Ð´ÈëÊý¾ÝµÄ³£Ó÷½·¨ÊÇ£º
FileOutputStream out out = new FileOutputStream("myfile.txt");
PrintStream p = new PrintStream( out );
Óà p.println() À´Ð´ÈëÊý¾Ý£¬È»ºóÓà p.close() ¹Ø±ÕÊäÈë¡£
ÍêÕû´úÂë¼û Example 2¡£
¶þÔÚ JDK 1.1ÖУ¬Ö§³ÖÁ½¸öеĶÔÏó Reader & Writer, ËüÃÇÖ»ÄÜÓÃÀ´¶ÔÎı¾Îļþ½øÐвÙ×÷£¬¶ø
JDK1.1ÖÐµÄ InputStream & OutputStream ¿ÉÒÔ¶ÔÎı¾Îļþ»ò¶þ½øÖÆÎļþ½øÐвÙ×÷¡£
ÓÃFileReader À´¶ÁÈ¡ÎļþµÄ³£Ó÷½·¨ÊÇ£º
FileReader fr = new FileReader("mydata.txt");
BufferedReader br = new BufferedReader(fr);
Óà br.readLing() À´¶Á³öÊý¾Ý£¬È»ºóÓÃbr.close() ¹Ø±Õ»º´æ£¬ÓÃfr.close() ¹Ø±ÕÎļþ¡£
ÍêÕû´úÂë¼û Example 3¡£
Óà FileWriter À´Ð´ÈëÎļþµÄ³£Ó÷½·¨ÊÇ£º
FileWriter fw = new FileWriter("mydata.txt");
PrintWriter out = new PrintWriter(fw);
ÔÚÓÃout.print »ò out.println À´ÍùÎļþÖÐдÈëÊý¾Ý£¬out.print ºÍ out.printlnµÄÎ¨Ò»Çø±ðÊǺóÕßд
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ÍêÕû´úÂë¼û Example 4¡£
Example 1
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// FileInputDemo
// Demonstrates FileInputStream and DataInputStream
import java.io.*;
class FileInputDemo {
public static void main(String args[]) {
// args.length
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import java.util.*;
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{
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}
}
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{
head=new Node(0);
}
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