import?java.awt.Canvas;
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import?java.awt.Color;
import?java.awt.Dimension;
import?java.awt.EventQueue;
import?java.awt.Frame;
import?java.awt.Graphics;
import?java.awt.Graphics2D;
import?java.awt.Image;
import?java.awt.RenderingHints;
import?java.awt.event.KeyEvent;
import?java.awt.event.KeyListener;
import?java.awt.event.WindowAdapter;
import?java.awt.event.WindowEvent;
import?java.awt.image.BufferedImage;
import?java.io.File;
import?java.io.IOException;
import?javax.imageio.ImageIO;
public?class?TestImage?extends?Frame
{
private?static?final?long?serialVersionUID?=?1L;
private?static?boolean?PRESSED?=?false;
private?static?int?pointX?=?0;
private?static?int?pointy?=?200;
private?static?int?RIGHT_GO?=?0;
private?static?int?LEFT_GO?=?0;
private?static?int?DIR?=?0;
private?static?int?ANGLE?=?0;
private?static?int?W?=?50;
private?static?int?H?=?60;
private?_Canvas?canvas?=?null;
public?TestImage?()
{
add?(canvas?=?new?_Canvas?());
setIgnoreRepaint?(true);
requestFocus?();
}
public?class?_Canvas?extends?Canvas?implements?Runnable
{
private?static?final?long?serialVersionUID?=?1L;
private?BufferedImage?bi?=?null;
private?Image?bufferedImage?=?null;
private?Thread?thread?=?null;
private?long?sleepTime?=?10;
public?_Canvas?()
{
try
{
bi?=?ImageIO.read?(new?File?("go.png"));
}
catch?(IOException?e)
{}
setBackground?(Color.BLACK);
requestFocus?();
addKeyListener?(new?KeyListener?()
{
@Override
public?void?keyTyped?(?KeyEvent?e?)
{}
@Override
public?void?keyReleased?(?KeyEvent?e?)
{
RIGHT_GO?=?0;
PRESSED?=?false;
}
@Override
public?void?keyPressed?(?KeyEvent?e?)
{
//?38?40?37?39上下左右
DIR?=?e.getKeyCode?();
PRESSED?=?true;
}
});
}
@Override
public?void?paint?(?Graphics?g?)
{
Graphics2D?g2d?=?(Graphics2D)?g;
g2d.setRenderingHint?(RenderingHints.KEY_INTERPOLATION,?RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.drawImage?(rotateImage?(bi.getSubimage?(RIGHT_GO,?LEFT_GO,?W,?H),?ANGLE,?true),?pointX,?pointy,?W,?H,
this);
g2d.dispose?();
}
@Override
public?void?update?(?Graphics?g?)
{
if?(null?==?bufferedImage)
{
bufferedImage?=?createImage?(getWidth?(),?getHeight?());
}
Graphics?bufferedG?=?bufferedImage.getGraphics?();
bufferedG.clearRect?(0,?0,?getWidth?(),?getHeight?());
paint?(bufferedG);
bufferedG.dispose?();
g.drawImage?(bufferedImage,?0,?0,?this);
g.dispose?();
}
public?void?start?()
{
thread?=?new?Thread?(this);
thread.setName?("TestImage");
thread.setPriority?(Thread.MIN_PRIORITY);
thread.start?();
}
public?synchronized?void?stop?()
{
thread?=?null;
notify?();
}
@Override
public?void?run?()
{
Thread?me?=?Thread.currentThread?();
while?(thread?==?me??!isShowing?()?||?getSize?().width?==?0)
{
try
{
Thread.sleep?(555);
}
catch?(InterruptedException?e)
{
return;
}
}
while?(thread?==?me??isShowing?())
{
if?(PRESSED)
{
try
{
if?(DIR?==?39)
{
RIGHT_GO?=?RIGHT_GO?+?50;
LEFT_GO?=?0;
pointX?=?pointX?+?1;
if?(pointX??420)
{
ANGLE?=?90;
pointX--;
pointy--;
W?=?60;
H?=?50;
}
if?(RIGHT_GO??50)
{
RIGHT_GO?=?0;
}
}
else?if?(DIR?==?37)
{
pointX?=?pointX?-?1;
RIGHT_GO?=?RIGHT_GO?+?50;
LEFT_GO?=?60;
if?(pointX??0)
{
ANGLE?=?-90;
pointX++;
pointy--;
W?=?60;
H?=?50;
}
if?(RIGHT_GO??50)
{
RIGHT_GO?=?0;
}
}
else?if?(DIR?==?38)
{
W?=?50;
H?=?60;
pointy?=?150;
ANGLE?=?0;
RIGHT_GO?=?100;
}
else?if?(DIR?==?40)
{
W?=?50;
H?=?60;
ANGLE?=?0;
pointy?=?200;
RIGHT_GO?=?0;
}
Thread.sleep?(sleepTime);
repaint?();
}
catch?(InterruptedException?e)
{
break;
}
}
else
{
RIGHT_GO?=?RIGHT_GO?+?50;
LEFT_GO?=?0;
pointX?=?pointX?+?1;
if?(RIGHT_GO??50)
{
RIGHT_GO?=?0;
}
if?(pointX??500)
{
pointX?=?0;
}
try
{
Thread.sleep?(sleepTime);
repaint?();
}
catch?(InterruptedException?e)
{
break;
}
}
}
thread?=?null;
}
}
/**
?*?旋轉(zhuǎn)圖像為指定角度
?*?
?*?@param?degree
?*?@return
?*/
public?static?BufferedImage?rotateImage?(?final?BufferedImage?image,?final?int?angdeg,?final?boolean?d?)
{
int?w?=?image.getWidth?();
int?h?=?image.getHeight?();
int?type?=?image.getColorModel?().getTransparency?();
BufferedImage?img;
Graphics2D?graphics2d;
(?graphics2d?=?(?img?=?new?BufferedImage?(w,?h,?type)?).createGraphics?()?).setRenderingHint?(
RenderingHints.KEY_INTERPOLATION,?RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate?(d???-Math.toRadians?(angdeg)?:?Math.toRadians?(angdeg),?w?/?2,?h?/?2);
graphics2d.drawImage?(image,?0,?0,?null);
graphics2d.dispose?();
return?img;
}
public?static?void?main?(?String[]?args?)
{
EventQueue.invokeLater?(new?Runnable?()
{
@Override
public?void?run?()
{
final?TestImage?ti?=?new?TestImage?();
ti.setSize?(new?Dimension?(500,?300));
ti.setLocationRelativeTo?(null);
ti.addWindowListener?(new?WindowAdapter?()
{
@Override
public?void?windowClosing?(?WindowEvent?e?)
{
System.exit?(0);
}
@Override
public?void?windowDeiconified?(?WindowEvent?e?)
{
ti.canvas.start?();
}
@Override
public?void?windowIconified?(?WindowEvent?e?)
{
ti.canvas.stop?();
}
});
ti.setResizable?(false);
ti.canvas.start?();
ti.setVisible?(true);
}
});
}
}
Print.java－－打印內(nèi)容定義 [code] import java.awt.*; import java.awt.event.*; import java.awt.print.*; import java.awt.image.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.border.*; import javax.swing.event.*; import java.util.*; import java.io.*; public class Print implements Printable{ int m_wPage; int m_hPage; int m_orientation; Printable m_target; int maxNumPage=1; String title="數(shù)據(jù)表格打印"; Font titleFont=new Font("黑體",Font.BOLD,14); boolean hasTail=true; int tailAlign=0; int headAlign=0; int topSpace=0; int leftSpace=0; int yStart=0; int yEnd=0; int xStart=topSpace; int xEnd=0; int x=0,y=0; String strTemp="打印內(nèi)容"; public void doPrint(){ try{ m_orientation=PageFormat.PORTRAIT; //設(shè)置打印對象，默認紙張 PrinterJob prnJob=PrinterJob.getPrinterJob(); PageFormat pageFormat=prnJob.defaultPage(); pageFormat.setOrientation(m_orientation); m_wPage=(int)(pageFormat.getWidth()); m_hPage=(int)(pageFormat.getHeight()); //將待打印的窗體根據(jù)默認紙張設(shè)置傳入打印對象 prnJob.setPrintable(this,pageFormat); if(!prnJob.printDialog()) return; prnJob.print(); }catch(PrinterException ex){ ex.printStackTrace(); System.err.println("打印錯誤："+ex.toString()); } } /** * 初始化打印參數(shù) */ public void initPrintParameter() { } /** *構(gòu)造打印內(nèi)容，以送打印機打印 */ public int print(Graphics pg,PageFormat pageFormat, int pageIndex) throws PrinterException{ //初始化打印參數(shù) initPrintParameter(); //將畫布設(shè)置為頁面大小 pg.translate((int)pageFormat.getImageableX(), (int)pageFormat.getImageableY()); int wPage=0; int hPage=0; //根據(jù)打印機頁面設(shè)置調(diào)整畫布大小 if(pageFormat.getOrientation()==pageFormat.PORTRAIT){ wPage=(int)pageFormat.getImageableWidth(); hPage=(int)pageFormat.getImageableHeight(); } else{ wPage=(int)pageFormat.getImageableWidth(); wPage+=wPage/2; hPage=(int)pageFormat.getImageableHeight(); pg.setClip(0,0,wPage,hPage); } wPage=wPage-2*leftSpace; hPage=hPage-2*topSpace; xStart=leftSpace; xEnd=wPage-2; //為畫布設(shè)置顏色和字體 int y=topSpace; pg.setFont(titleFont); pg.setColor(Color.black); //畫標(biāo)題，并使其居中 Font fn=pg.getFont(); FontMetrics fm=pg.getFontMetrics(); y+=fm.getAscent(); alignText(title,pg,y,xStart,xEnd,headAlign); y+=30; x=leftSpace+2; Font headerFont=new Font("宋體",Font.BOLD,14); pg.setFont(headerFont); fm=pg.getFontMetrics(); int h=fm.getAscent(); yStart=y-1; y+=h; pg.setFont(headerFont); fm=pg.getFontMetrics(); int header=y; h=fm.getHeight(); //計算行高，每頁行數(shù)，總行數(shù)和指定頁碼的起始行、結(jié)束行 int rowH=Math.max(h,10); int tailH=rowH+30; int rowPerPage=0; int leftPix=0; if(hasTail){ rowPerPage=(hPage-header-tailH)/rowH; leftPix=(hPage-header-tailH)%rowH; yEnd=hPage-leftPix-tailH+2; } else{ rowPerPage=(hPage-header)/rowH; leftPix=(hPage-header)%rowH; yEnd=hPage-leftPix+2; } pg.drawString(strTemp,x,y); //畫表格邊框 pg.drawLine(xStart,yStart,xStart,yEnd); pg.drawLine(xStart,yStart,xEnd,yStart); pg.drawLine(xEnd,yStart,xEnd,yEnd); pg.drawLine(xStart,yEnd,xEnd,yEnd); //打印頁碼 if(hasTail){ int pageNumber=pageIndex+1; String s="第"+pageNumber+"頁"; alignText(s,pg,yEnd+30,xStart,xEnd,tailAlign); } System.gc(); return PAGE_EXISTS; } /** * 文字排列，坐標(biāo)在y處,顯示范圍（start-end） * 0表示居中顯示，1表示左對齊，2表示右對齊 */ private void alignText(String s,Graphics pg,int y,int start, int end,int mode){ Font fn=pg.getFont(); FontMetrics fm=pg.getFontMetrics(); int wString=fm.stringWidth(s); int x=start; switch(mode) { case 0: if((end-start-wString)0) x=start+(end-start-wString)/2; break; case 1: break; case 2: if((end-start-wString)0) x=start+(end-start-wString); break; } pg.drawString(s,x,y); } public static void main(String[] args){ Print p=new Print(); p.doPrint(); } } [code] 運行方法： javac -d . Print.java java Print 自己運行一下 from:
采納哦
這樣可以
public?static?void?main(String[]?args)?{
String[]?temps?=?{"A","B","C","D","E","F","G"};
for?(int?i?=?1;?i?=?temps.length;?i++)?{
for(int?j?=?temps.length;?j??i;?j--){???
System.out.print("?");???
}
for?(int?j?=?0;?j??i*2-1;?j++)?{
??System.out.print(temps[i-1]);
}
System.out.println();
}
}
運行結(jié)果
A
BBB
CCCCC
DDDDDDD
EEEEEEEEE
FFFFFFFFFFF
GGGGGGGGGGGGG
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重慶分公司
