请教一下关于位操作在JAVA里的应用,一直不太明白这个,请问在JAVA中位操作都有哪些应用呢?最好有例子,不胜感激! 请教一下关于位操作在JAVA里的应用,一直不太明白这个,请问在JAVA中位操作都有哪些应用呢?最好有例子,不胜感激! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 这主要还是用在一些特殊的算法中,看看这个Image back = createImage(imageW,imageH + 1); Graphics offg = back.getGraphics(); int phase = 0; int x,y; double p1; offg.drawImage(imImage,0,1,this); for(int i=0;i<(imageH>>1);i++) { offg.copyArea(0,i,imageW,1,0,imageH-i); offg.copyArea(0,imageH-1-i,imageW,1,0,-imageH+1+(i<<1)); offg.copyArea(0,imageH,imageW,1,0,-1-i); } refimage = createImage((frames + 1)* imageW,imageH); refraction = refimage.getGraphics(); refraction.drawImage(back,frames * imageW,0,this); for(phase = 0;phase<frames;phase++) { p1 = 2 * Math.PI * (double)phase / (double)frames; x = (frames - phase) * imageW; for(int i = 0;i <imageH; i++) { y = (int)((imageH/14)*((double)i + 28.0)*Math.sin((double)((imageH/14)*(imageH - i))/(double)(i+1)+p1)/(double)imageH); if(i < y) refraction.copyArea(frames * imageW,i,imageW,1,-x,0); else refraction.copyArea(frames * imageW,i+y,imageW,1,-x,-y); } } offg.drawImage(imImage,0,1,this); imImage = back; 异常处理 对每一位进行取反 找零问题 迷惑的错误信息--在线等 出现java.util.AbstractList$Itr@76cbf7错误.该怎么做(改)啊? 内部类如何实例化 怎么获得数据库自动给的值 可能又是一个很傻的问题,大家都帮帮了 请问crystal report如何在b/s模式下实现动态报表? 正则表达式解析 我想这个问题挺难的——如何模拟网站登录??(解决了另送100分) 一个很棘手的问题!!!
Image back = createImage(imageW,imageH + 1);
Graphics offg = back.getGraphics();
int phase = 0;
int x,y;
double p1;
offg.drawImage(imImage,0,1,this);
for(int i=0;i<(imageH>>1);i++)
{
offg.copyArea(0,i,imageW,1,0,imageH-i);
offg.copyArea(0,imageH-1-i,imageW,1,0,-imageH+1+(i<<1));
offg.copyArea(0,imageH,imageW,1,0,-1-i);
}
refimage = createImage((frames + 1)* imageW,imageH);
refraction = refimage.getGraphics();
refraction.drawImage(back,frames * imageW,0,this);
for(phase = 0;phase<frames;phase++)
{
p1 = 2 * Math.PI * (double)phase / (double)frames;
x = (frames - phase) * imageW;
for(int i = 0;i <imageH; i++)
{
y = (int)((imageH/14)*((double)i + 28.0)*Math.sin((double)((imageH/14)*(imageH - i))/(double)(i+1)+p1)/(double)imageH);
if(i < y)
refraction.copyArea(frames * imageW,i,imageW,1,-x,0);
else
refraction.copyArea(frames * imageW,i+y,imageW,1,-x,-y);
}
}
offg.drawImage(imImage,0,1,this);
imImage = back;