一本一道久久综合狠狠老精东影业,亚洲国产精品999,亚洲精品视频在线播放

kaisne — Mon, 31 Aug 2009 03:15:00 GMT

摘要: 关于��d��android手机通讯录过�E�中Excessive JNI global references VM aborting 的问�?日志报错如下�Q�我在读取通讯录的时候遇到的问题�Q�日志如下，��d��800多个人的联系方式的时候就��Z��面的错误�?8-30 04:48:33.310: DEBUG/dalvikvm(451): GREF has increased to 200108-30 04:48:33... 阅读全文

kaisne 2009-08-31 11:15 发表评论

关于ECLIPSE中j2me�E�序�q�行时报ALERT: java/lang/ClassFormatError: Bad version information.错误

kaisne — Thu, 02 Jul 2009 03:13:00 GMT

今天在ECLIPSE中写的j2me�E�序�q�行时候，报ALERT: java/lang/ClassFormatError: Bad version information.一个错误。开始一直以为是自己的程序问题。后来查了一下才知道�Q�原来是Eclipse中设�|�版本的�~�译�U�别的问题�?br> 解决�Ҏ��Q?br>选择eclipse中的"window"->preferences->讄��jdk complier compliance leve�?.3�?.4,因�ؓj2me不支持jdk5,6.讄��好后��OK�?

kaisne 2009-07-02 11:13 发表评论

kaisne — Mon, 29 Jun 2009 03:50:00 GMT

��一个无�W�号数是不�ؓ2^n-1(^为幂)�Q?nbsp; x&(x+1)

  ��最右侧0位改�?位：   x   |   (x+1)

  二进制补码运��公式：
  -x   =   ~x   +   1   =   ~(x-1)
  ~x   =   -x-1
  -(~x)   =   x+1
  ~(-x)   =   x-1
  x+y   =   x   -   ~y   -   1   =   (x|y)+(x&y)
  x-y   =   x   +   ~y   +   1   =   (x|~y)-(~x&y)
  x^y   =   (x|y)-(x&y)
  x|y   =   (x&~y)+y
  x&y   =   (~x|y)-~x

  x==y:         ~(x-y|y-x)
  x!=y:         x-y|y-x
  x<   y:         (x-y)^((x^y)&((x-y)^x))
  x<=y:         (x|~y)&((x^y)|~(y-x))
  x<   y:         (~x&y)|((~x|y)&(x-y))//无符号x,y比较
  x<=y:         (~x|y)&((x^y)|~(y-x))//无符号x,y比较


  使用位运��的无分支代码：

  计算�l�对�?nbsp;
  int   abs(   int   x   )
  {
  int   y   ;
  y   =   x   >>   31   ;
  return   (x^y)-y   ;//or:   (x+y)^y
  }

  �W�号函数�Q�sign(x)   =   -1,   x<0;   0,   x   ==   0   ;   1,   x   >   0
  int   sign(int   x)
  {
  return   (x>>31)   |   (unsigned(-x))>>31   ;//x=-2^31时失�?^为幂)
  }

  三值比较：cmp(x,y)   =   -1,   x   y
  int   cmp(   int   x,   int   y   )
  {
  return   (x>y)-(x-y)   ;
  }

  doz=x-y,   x>=y;   0,   x  int   doz(int   x,   int   y   )
  {
  int   d   ;
  d   =   x-y   ;
  return   d   &   ((~(d^((x^y)&(d^x))))>>31)   ;
  }

  int   max(int   x,   int   y   )
  {
  int   m   ;
  m   =   (x-y)>>31   ;
  return   y   &   m   |   x   &   ~m   ;
  }

  不��用第三方交换x,y:
  1.x   ^=   y   ;   y   ^=   x   ;   x   ^=   y   ;
  2.x   =   x+y   ;   y   =   x-y   ;   x   =   x-y   ;
  3.x   =   x-y   ;   y   =   y+x   ;   x   =   y-x   ;
  4.x   =   y-x   ;   x   =   y-x   ;   x   =   x+y   ;

  双��g��?x   =   a,   x==b;   b,   x==a//常规�~�码为x   =   x==a   ?   b   :a   ;
  1.x   =   a+b-x   ;
  2.x   =   a^b^x   ;

  下舍入到2的k�ơ方的倍数:
  1.x   &   ((-1)<  2.(((unsigned)x)>>k)<  上舍入：
  1.   t   =   (1<  2.t   =   (-1)<
  位计�?�l�计1位的数量�Q?nbsp;
  1.
  int   pop(unsigned   x)
  {
  x   =   x-((x>>1)&0x55555555)   ;
  x   =   (x&0x33333333)   +   ((x>>2)   &   0x33333333   )   ;
  x   =   (x+(x>>4))   &   0x0f0f0f0f   ;
  x   =   x   +   (x>>8)   ;
  x   =   x   +   (x>>16)   ;
  return   x   &   0x0000003f   ;
  }
  2.
  int   pop(unsigned   x)   {
  static   char   table[256]   =   {   0,1,1,2,   1,2,2,3,   ....,   6,7,7,8   }   ;
  return   table[x&0xff]+table[(x>>8)&0xff]+table[(x>>16)&0xff]+table[(x>>24)]   ;
  }

  奇偶性计��?
  x   =   x   ^   (   x>>1   )   ;
  x   =   x   ^   (   x>>2   )   ;
  x   =   x   ^   (   x>>4   )   ;
  x   =   x   ^   (   x>>8   )   ;
  x   =   x   ^   (   x>>16   )   ;
  �l�果中位于x最低位�Q�对无符号x,�l�果的第i位是原数�W�i位到最左侧位的奇偶�?nbsp;


  位反转：
  unsigned   rev(unsigned   x)
  {
  x   =   (x   &   0x55555555)   <<   1   |   (x>>1)   &   0x55555555   ;
  x   =   (x   &   0x33333333)   <<   2   |   (x>>2)   &   0x33333333   ;
  x   =   (x   &   0x0f0f0f0f)   <<   4   |   (x>>4)   &   0x0f0f0f0f   ;
  x   =   (x<<24)   |   ((x&0xff00)<<8)   |   ((x>>8)   &   0xff00)   |   (x>>24)   ;
  return   x   ;
  }

  递增位反转后的数�Q?nbsp;
  unsigned   inc_r(unsigned   x)
  {
  unsigned   m   =   0x80000000   ;
  x   ^=   m   ;
  if(   (int)x   >=   0   )
  do   {   m   >>=   1   ;   x   ^=   m   ;   }   while(   x   <   m   )   ;
  return   x   ;
  }

  混选位�Q?nbsp;
  abcd   efgh   ijkl   mnop   ABCD   EFGH   IJKL   MNOP->aAbB   cCdD   eEfF   gGhH   iIjJ   kKlL   mMnN   oOpP
  unsigned   ps(unsigned   x)
  {
  unsigned   t   ;
  t   =   (x   ^   (x>>8))   &   0x0000ff00;   x   =   x   ^   t   ^   (t<<8)   ;
  t   =   (x   ^   (x>>4))   &   0x00f000f0;   x   =   x   ^   t   ^   (t<<4)   ;
  t   =   (x   ^   (x>>2))   &   0x0c0c0c0c;   x   =   x   ^   t   ^   (t<<2)   ;
  t   =   (x   ^   (x>>1))   &   0x22222222;   x   =   x   ^   t   ^   (t<<1)   ;
  return   x   ;
  }

  位压�~�：
  选择�q�右�U�d��x中对应于掩码m�?位的�?如：compress(abcdefgh,01010101)=0000bdfh
  compress_left(x,m)操作与此�c�M��Q�但�l�果位在左边:   bdfh0000.
  unsigned   compress(unsigned   x,   unsigned   m)
  {
  unsigned   mk,   mp,   mv,   t   ;
  int   i   ;

  x   &=   m   ;
  mk   =   ~m   <<   1   ;
  for(   i   =   0   ;   i   <   5   ;   ++i   )   {
  mp   =   mk   ^   (   mk   <<   1)   ;
  mp   ^=   (   mp   <<   2   )   ;
  mp   ^=   (   mp   <<   4   )   ;
  mp   ^=   (   mp   <<   8   )   ;
  mp   ^=   (   mp   <<   16   )   ;
  mv   =   mp   &   m   ;
  m   =   m   ^   mv   |   (mv   >>   (1<  t   =   x   &   mv   ;
  x     =   x   ^   t   |   (   t   >>   (   1<  mk   =   mk   &   ~mp   ;
  }
  return   x   ;
  }


  位置换：
  �?2�?位数表示从最低位开始的位的目标位置�Q�结果是一�?2*5的位矩阵�Q?nbsp;
  ��该矩阵沿次对角�U��{�|�后�?�?2位字p[5]存放�?nbsp;
  SAG(x,m)   =   compress_left(x,m)   |   compress(x,~m)   ;
  准备工作�Q?nbsp;
  void   init(   unsigned   *p   )   {
  p[1]   =   SAG(   p[1],   p[0]   )   ;
  p[2]   =   SAG(   SAG(   p[2],   p[0]),   p[1]   )   ;
  p[3]   =   SAG(   SAG(   SAG(   p[3],   p[0]   ),   p[1]),   p[2]   )   ;
  p[4]   =   SAG(   SAG(   SAG(   SAG(   p[4],   p[0]   ),   p[1])   ,p[2]),   p[3]   )   ;
  }
  实际�|�换�Q?nbsp;
  int   rep(   unsigned   x   )   {
  x   =   SAG(x,p[0]);
  x   =   SAG(x,p[1]);
  x   =   SAG(x,p[2]);
  x   =   SAG(x,p[3]);
  x   =   SAG(x,p[4]);
  return   x   ;
  }

  二进制码到GRAY码的转换:
  unsigned   B2G(unsigned   B   )
  {
  return   B   ^   (B>>1)   ;
  }
  GRAY码到二进制码:
  unsigned   G2B(unsigned   G)
  {
  unsigned   B   ;
  B   =   G   ^   (G>>1)   ;
  B   =   G   ^   (G>>2)   ;
  B   =   G   ^   (G>>4)   ;
  B   =   G   ^   (G>>8)   ;
  B   =   G   ^   (G>>16)   ;
  return   B   ;
  }

  扑և�最�?字节的位�|?
  int   zbytel(   unsigned   x   )
  {
  static   cahr   table[16]   =   {   4,3,2,2,   1,1,1,1,   0,0,0,0,   0,0,0,0   }   ;
  unsigned   y   ;
  y   =   (x&0x7f7f7f7f)   +   0x7f7f7f7f   ;
  y   =   ~(y|x|0x7f7f7f7f)   ;
  return   table[y*0x00204081   >>   28]   ;//乘法可用�U�M��和加完成
  }

转自�Q�http://www.x-boy.com/trackback.asp?tbID=64

kaisne 2009-06-29 11:50 发表评论

kaisne — Sat, 30 May 2009 18:29:00 GMT

摘要: 今天看看了symbian的活动对象介�l�，于是写一个有��x��动对象的��程序，该程序是一个GUI�E�序�Q�在view动态显�C�当前的旉��Q��用到的活动对象定义如下： /**//* ============================================================================ Name ... 阅读全文

kaisne 2009-05-31 02:29 发表评论

[原创]手机囑փ��单预处理(J2ME实现)

kaisne — Wed, 27 May 2009 05:31:00 GMT

摘要: 手机囑փ��单预处理(J2ME实现) 2009�q?�?7日星期三最�q�看��C��前的一本数字图像处理书�Q�不��想用j2me��试一下简单的数字囑փ�处理在手��Z��如何实现。于是便有本文�? 1package com.yuankai.ImageTest; 2 3import java.io.IOException; 4 5import... 阅读全文

kaisne 2009-05-27 13:31 发表评论

[原创]Android在eclipse下出现Failed to find an AVD compatible with target 'Android 1.5'. Launch aborted.错误

kaisne — Wed, 29 Apr 2009 13:34:00 GMT

[原创]eclipse�?Failed to find an AVD compatible with target 'Android 1.5'. Launch aborted.

[2009-04-29 15:06:25 - HelloWorld] ------------------------------
[2009-04-29 15:06:25 - HelloWorld] Android Launch!
[2009-04-29 15:06:25 - HelloWorld] adb is running normally.
[2009-04-29 15:06:25 - HelloWorld] Performing com.yuankai.android.study.HelloAndroid activity launch
[2009-04-29 15:06:25 - HelloWorld] Failed to find an AVD compatible with target 'Android 1.5'. Launch aborted.

�|�上找了老久�Q?em>原因�?u>没有创徏Android Virtual Device,解决�Ҏ��是在DOS界面下运�?font color=#00ff00>D:\Android SDK\android-sdk-windows-1.5_r1\tools 目录[�?Android SDK安装目录]�?/font>android .bat工具�Q�指令是:android create avd --name android15r1 --target 2 (其中“android15r1”自己指定一个别的名字也可以)�Q?/p>

��h��上原文是:

Create a new AVD using your selected Deployment Target. Execute:

android create avd --name  --target

D:\Android SDK\android-sdk-windows-1.5_r1\tools>android list
Available Android targets:
id: 1
     Name: Android 1.1
     Type: Platform
     API level: 2
     Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 2
     Name: Android 1.5
     Type: Platform
     API level: 3
     Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 3
     Name: Google APIs
     Type: Add-On
     Vendor: Google Inc.
     Description: Android + Google APIs
     Based on Android 1.5 (API level 3)
     Libraries:
      * com.google.android.maps (maps.jar)
          API for Google Maps
     Skins: QVGA-P, HVGA-L, HVGA (default), QVGA-L, HVGA-P
Available Android Virtual Devices:

D:\Android SDK\android-sdk-windows-1.5_r1\tools>android create avd --name a
id15r1 --target 2

Android 1.5 is a basic Android platform.
Do you wish to create a custom hardware profile [no]yes

......

.......

Created AVD 'android15r1' based on Android 1.5

D:\Android SDK\android-sdk-windows-1.5_r1\tools>

�q�样��创��Z��一个自己定义的avd(Android Virtual Device),然后在之后就只要在Eclipse的Run Configurations里面指定一个AVD卛_��Target下选中我们自己定义的这个AVD�?strong>android15r1��可以运行了.

�q�样应该��p��决eclipse�~�译工程时会出错�Q�Failed to find a AVD compatible with target 'Android 1.5'. Launch aborted.�Q�问题啦。不知道上面我说的是否有错，不过大家可以借鉴一下�?/font>

kaisne 2009-04-29 21:34 发表评论

�Ƣ迎光��

kaisne — Mon, 27 Apr 2009 09:21:00 GMT

�Ƣ迎光��Q�今天刚刚申��h��CPP的blog�Q�之前常常在�q�边看别人的文章�Q�呵��c�?

kaisne 2009-04-27 17:21 发表评论

一本一道久久综合狠狠老精东影业,亚洲国产精品999,亚洲精品视频在线播放

关于ECLIPSE中j2me�E�序�q�行时报ALERT: java/lang/ClassFormatError: Bad version information.错误

[原创]手机囑փ����单预处理(J2ME实现)

[原创]Android在eclipse下出现Failed to find an AVD compatible with target 'Android 1.5'. Launch aborted.错误

�Ƣ迎光��

[原创]手机囑փ��单预处理(J2ME实现)