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Java RandomAccessFile дÈëtxtÎļþ - Java / Java SE

ÓÃRandomAccessFileдÈëTXTÎļþ²é¿´Ê±ÊÇÂÒÂ룬ÇëÎÊÓÐʲô·½·¨¿ÉÒÔд³É¿É¶ÁµÄÎļþ£¬²»ÊÇÓÃÆäËûµÄÎļþ²Ù×÷£¬¾ÍÊÇÖ»ÓÃRandomAccessFileµÄ·½·¨ÊÇ·ñ¿ÉÒÔʵÏÖ£¿
Java code:
import java.io.*;
public class RandomAccessFileDemo
{
public static void main(String[] args) throws IOException
{
RandomAccessFile raf=new RandomAccessFile("random.txt","rw");
raf.writeBoolean(true);
raf.writeInt(2008);
raf.writeChar('Äê');
raf.writeDouble(08.08);
raf.writeUTF("Å·ÁÖÆ¥¿ËÔ˶¯»á");
raf.seek(1);
System.out.println(raf.readInt());
System.out.println(raf.readChar());
System.out.println(raf.readDouble());
System.out.println(raf.readUTF());
raf.seek(0);
System.out.println(raf.readBoolean());
raf.close();
}
}

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1¡¢String.getBytes£¨£©½«»á°´ÕÕµ±Ç°ÏµÍ³Ä¬ÈϵÄencoding·½Ê½»ñµÃ×Ö·û´®µÄ Bytes£¬RandomAccessFile.write(byte[])½«Õâ¸öbyteÊý×éÕýȷдÈë¡£ÓÉÓÚдÈëµÄʵ¼Ê¾ÍÊÇWindowsƽ̨µÄ nativecode±àÂ룬ËùÒÔÎļþ»¹Äܹ»±»ÕýÈ·µÄÔĶÁ¡£
2¡¢RandomAccessFile.writeBytes(String)½«×Ö·û´®µÄ¸÷¸ö×Ö·û£¨µ±È»ÊÇÓÃunicode±àÂëµÄ£©µÄ¸ß8λȥµô£¬Ð´ÈëÎļþ¡£
3¡¢RandomAccessFile.writeChars(String)½«×Ö·û´®µÄ¸÷¸ö


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