java画图板 JAVA实现简单的画图板
你是否曾想过，java画图板和JAVA实现简单的画图板之间是否存在联系？在本文中，小编将为您探索它们之间的关系，带您领略新的视角和见解。
java 实现 简单画图功能(简单点的)
楼主给你一个我编的，直接保存成pb.java编译运行，就是你要的画图功能
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import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;
class Point implements Serializable
{
int x,y;
Color col;
int tool;
int boarder;
Point(int x, int y, Color col, int tool, int boarder)
{
this.x= x;
this.y= y;
this.col= col;
this.tool= tool;
this.boarder= boarder;
}
}
class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
int x=-1, y=-1;
int con= 1;//画笔大小
int Econ= 5;//橡皮大小
int toolFlag= 0;//toolFlag:工具标记
//toolFlag工具对应表：
//（0--画笔）；（1--橡皮）；（2--清除）；
//（3--直线）；（4--圆）；（5--矩形）；
Color c= new Color(0,0,0);//画笔颜色
BasicStroke size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//画笔粗细
Point cutflag= new Point(-1,-1, c, 6, con);//截断标志
Vector paintInfo= null;//点信息向量组
int n= 1;
FileInputStream picIn= null;
FileOutputStream picOut= null;
ObjectInputStream VIn= null;
ObjectOutputStream VOut= null;
//*工具面板--画笔，直线，圆，矩形，多边形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label颜色,大小B,大小E;
//保存功能
Button openPic,savePic;
FileDialog openPicture,savePicture;
paintboard(String s)
{
super(s);
addMouseMotionListener(this);
addMouseListener(this);
paintInfo= new Vector();
/*各工具按钮及选择项*/
//颜色选择
ColChoice= new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//画笔大小选择
SizeChoice= new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小选择
EraserChoice= new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
////////////////////////////////////////////////////
toolPanel= new Panel();
clear= new Button("清除");
eraser= new Button("橡皮");
pen= new Button("画笔");
drLine= new Button("画直线");
drCircle= new Button("画圆形");
drRect= new Button("画矩形");
openPic= new Button("打开图画");
savePic= new Button("保存图画");
colchooser= new Button("显示调色板");
//各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
openPic.addActionListener(this);
savePic.addActionListener(this);
colchooser.addActionListener(this);
颜色= new Label("画笔颜色",Label.CENTER);
大小B= new Label("画笔大小",Label.CENTER);
大小E= new Label("橡皮大小",Label.CENTER);
//面板添加组件
toolPanel.add(openPic);
toolPanel.add(savePic);
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(颜色); toolPanel.add(ColChoice);
toolPanel.add(大小B); toolPanel.add(SizeChoice);
toolPanel.add(colchooser);
toolPanel.add(eraser);
toolPanel.add(大小E); toolPanel.add(EraserChoice);
toolPanel.add(clear);
//工具面板到APPLET面板
add(toolPanel,BorderLayout.NORTH);
setBounds(60,60,900,600); setVisible(true);
validate();
//dialog for save and load
openPicture= new FileDialog(this,"打开图画",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture= new FileDialog(this,"保存图画",FileDialog.SAVE);
savePicture.setVisible(false);
openPicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ openPicture.setVisible(false);}
});
savePicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ savePicture.setVisible(false);}
});
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0);}
});
}
public void paint(Graphics g)
{
Graphics2D g2d=(Graphics2D)g;
Point p1,p2;
n= paintInfo.size();
if(toolFlag==2)
g.clearRect(0,0,getSize().width,getSize().height);//清除
for(int i=0; i<n;i++){
p1=(Point)paintInfo.elementAt(i);
p2=(Point)paintInfo.elementAt(i+1);
size= new BasicStroke(p1.boarder,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
g2d.setColor(p1.col);
g2d.setStroke(size);
if(p1.tool==p2.tool)
{
switch(p1.tool)
{
case 0://画笔
Line2D line1= new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line1);
break;
case 1://橡皮
g.clearRect(p1.x, p1.y, p1.boarder, p1.boarder);
break;
case 3://画直线
Line2D line2= new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;
case 4://画圆
Ellipse2D ellipse= new Ellipse2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x), Math.abs(p2.y-p1.y));
g2d.draw(ellipse);
break;
case 5://画矩形
Rectangle2D rect= new Rectangle2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x), Math.abs(p2.y-p1.y));
g2d.draw(rect);
break;
case 6://截断，跳过
i=i+1;
break;
default:
}//end switch
}//end if
}//end for
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//预选颜色
{
String name= ColChoice.getSelectedItem();
if(name=="black")
{c= new Color(0,0,0);}
else if(name=="red")
{c= new Color(255,0,0);}
else if(name=="green")
{c= new Color(0,255,0);}
else if(name=="blue")
{c= new Color(0,0,255);}
}
else if(e.getSource()==SizeChoice)//画笔大小
{
String selected= SizeChoice.getSelectedItem();
if(selected=="1")
{
con= 1;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="3")
{
con= 3;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="5")
{con= 5;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="7")
{con= 7;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="9")
{con= 9;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
}
else if(e.getSource()==EraserChoice)//橡皮大小
{
String Esize= EraserChoice.getSelectedItem();
if(Esize=="5")
{ Econ= 5*2;}
else if(Esize=="9")
{ Econ= 9*2;}
else if(Esize=="13")
{ Econ= 13*2;}
else if(Esize=="17")
{ Econ= 17*3;}
}
}
public void mouseDragged(MouseEvent e)
{
Point p1;
switch(toolFlag){
case 0://画笔
x=(int)e.getX();
y=(int)e.getY();
p1= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p1);
repaint();
break;
case 1://橡皮
x=(int)e.getX();
y=(int)e.getY();
p1= new Point(x, y, null, toolFlag, Econ);
paintInfo.addElement(p1);
repaint();
break;
default:
}
}
public void mouseMoved(MouseEvent e){}
public void update(Graphics g)
{
paint(g);
}
public void mousePressed(MouseEvent e)
{
Point p2;
switch(toolFlag){
case 3://直线
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 4://圆
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 5://矩形
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
default:
}
}
public void mouseReleased(MouseEvent e)
{
Point p3;
switch(toolFlag){
case 0://画笔
paintInfo.addElement(cutflag);
break;
case 1://eraser
paintInfo.addElement(cutflag);
break;
case 3://直线
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 4://圆
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 5://矩形
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
default:
}
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==pen)//画笔
{toolFlag= 0;}
if(e.getSource()==eraser)//橡皮
{toolFlag= 1;}
if(e.getSource()==clear)//清除
{
toolFlag= 2;
paintInfo.removeAllElements();
repaint();
}
if(e.getSource()==drLine)//画线
{toolFlag= 3;}
if(e.getSource()==drCircle)//画圆
{toolFlag= 4;}
if(e.getSource()==drRect)//画矩形
{toolFlag= 5;}
if(e.getSource()==colchooser)//调色板
{
Color newColor= JColorChooser.showDialog(this,"调色板",c);
c= newColor;
}
if(e.getSource()==openPic)//打开图画
{
openPicture.setVisible(true);
if(openPicture.getFile()!=null)
{
int tempflag;
tempflag= toolFlag;
toolFlag= 2;
repaint();
try{
paintInfo.removeAllElements();
File filein= new File(openPicture.getDirectory(),openPicture.getFile());
picIn= new FileInputStream(filein);
VIn= new ObjectInputStream(picIn);
paintInfo=(Vector)VIn.readObject();
VIn.close();
repaint();
toolFlag= tempflag;
}
catch(ClassNotFoundException IOe2)
{
repaint();
toolFlag= tempflag;
System.out.println("can not read object");
}
catch(IOException IOe)
{
repaint();
toolFlag= tempflag;
System.out.println("can not read file");
}
}
}
if(e.getSource()==savePic)//保存图画
{
savePicture.setVisible(true);
try{
File fileout= new File(savePicture.getDirectory(),savePicture.getFile());
picOut= new FileOutputStream(fileout);
VOut= new ObjectOutputStream(picOut);
VOut.writeObject(paintInfo);
VOut.close();
}
catch(IOException IOe)
{
System.out.println("can not write object");
}
}
}
}//end paintboard
public class pb
{
public static void main(String args[])
{ new paintboard("画图程序");}
}
JAVA实现简单的画图板
楼主写一个html，很容易把下面代码嵌入到applet，可以google一下实现，
还有copy自己不知道算不算复制。。。-_-!
--------------------------------------------------------------------
楼主给你一个我的，直接保存成pb.java编译运行，就是你要的画图功能，可以参考一下
____________________________________________________________________
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;
class Point implements Serializable
{
int x,y;
Color col;
int tool;
int boarder;
Point(int x, int y, Color col, int tool, int boarder)
{
this.x= x;
this.y= y;
this.col= col;
this.tool= tool;
this.boarder= boarder;
}
}
class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
int x=-1, y=-1;
int con= 1;//画笔大小
int Econ= 5;//橡皮大小
int toolFlag= 0;//toolFlag:工具标记
//toolFlag工具对应表：
//（0--画笔）；（1--橡皮）；（2--清除）；
//（3--直线）；（4--圆）；（5--矩形）；
Color c= new Color(0,0,0);//画笔颜色
BasicStroke size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//画笔粗细
Point cutflag= new Point(-1,-1, c, 6, con);//截断标志
Vector paintInfo= null;//点信息向量组
int n= 1;
FileInputStream picIn= null;
FileOutputStream picOut= null;
ObjectInputStream VIn= null;
ObjectOutputStream VOut= null;
//*工具面板--画笔，直线，圆，矩形，多边形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label颜色,大小B,大小E;
//保存功能
Button openPic,savePic;
FileDialog openPicture,savePicture;
paintboard(String s)
{
super(s);
addMouseMotionListener(this);
addMouseListener(this);
paintInfo= new Vector();
/*各工具按钮及选择项*/
//颜色选择
ColChoice= new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//画笔大小选择
SizeChoice= new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小选择
EraserChoice= new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
////////////////////////////////////////////////////
toolPanel= new Panel();
clear= new Button("清除");
eraser= new Button("橡皮");
pen= new Button("画笔");
drLine= new Button("画直线");
drCircle= new Button("画圆形");
drRect= new Button("画矩形");
openPic= new Button("打开图画");
savePic= new Button("保存图画");
colchooser= new Button("显示调色板");
//各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
openPic.addActionListener(this);
savePic.addActionListener(this);
colchooser.addActionListener(this);
颜色= new Label("画笔颜色",Label.CENTER);
大小B= new Label("画笔大小",Label.CENTER);
大小E= new Label("橡皮大小",Label.CENTER);
//面板添加组件
toolPanel.add(openPic);
toolPanel.add(savePic);
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(颜色); toolPanel.add(ColChoice);
toolPanel.add(大小B); toolPanel.add(SizeChoice);
toolPanel.add(colchooser);
toolPanel.add(eraser);
toolPanel.add(大小E); toolPanel.add(EraserChoice);
toolPanel.add(clear);
//工具面板到APPLET面板
add(toolPanel,BorderLayout.NORTH);
setBounds(60,60,900,600); setVisible(true);
validate();
//dialog for save and load
openPicture= new FileDialog(this,"打开图画",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture= new FileDialog(this,"保存图画",FileDialog.SAVE);
savePicture.setVisible(false);
openPicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ openPicture.setVisible(false);}
});
savePicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ savePicture.setVisible(false);}
});
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0);}
});
}
public void paint(Graphics g)
{
Graphics2D g2d=(Graphics2D)g;
Point p1,p2;
n= paintInfo.size();
if(toolFlag==2)
g.clearRect(0,0,getSize().width,getSize().height);//清除
for(int i=0; i<n;i++){
p1=(Point)paintInfo.elementAt(i);
p2=(Point)paintInfo.elementAt(i+1);
size= new BasicStroke(p1.boarder,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
g2d.setColor(p1.col);
g2d.setStroke(size);
if(p1.tool==p2.tool)
{
switch(p1.tool)
{
case 0://画笔
Line2D line1= new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line1);
break;
case 1://橡皮
g.clearRect(p1.x, p1.y, p1.boarder, p1.boarder);
break;
case 3://画直线
Line2D line2= new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;
case 4://画圆
Ellipse2D ellipse= new Ellipse2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x), Math.abs(p2.y-p1.y));
g2d.draw(ellipse);
break;
case 5://画矩形
Rectangle2D rect= new Rectangle2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x), Math.abs(p2.y-p1.y));
g2d.draw(rect);
break;
case 6://截断，跳过
i=i+1;
break;
default:
}//end switch
}//end if
}//end for
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//预选颜色
{
String name= ColChoice.getSelectedItem();
if(name=="black")
{c= new Color(0,0,0);}
else if(name=="red")
{c= new Color(255,0,0);}
else if(name=="green")
{c= new Color(0,255,0);}
else if(name=="blue")
{c= new Color(0,0,255);}
}
else if(e.getSource()==SizeChoice)//画笔大小
{
String selected= SizeChoice.getSelectedItem();
if(selected=="1")
{
con= 1;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="3")
{
con= 3;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="5")
{con= 5;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="7")
{con= 7;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="9")
{con= 9;
size= new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
}
else if(e.getSource()==EraserChoice)//橡皮大小
{
String Esize= EraserChoice.getSelectedItem();
if(Esize=="5")
{ Econ= 5*2;}
else if(Esize=="9")
{ Econ= 9*2;}
else if(Esize=="13")
{ Econ= 13*2;}
else if(Esize=="17")
{ Econ= 17*3;}
}
}
public void mouseDragged(MouseEvent e)
{
Point p1;
switch(toolFlag){
case 0://画笔
x=(int)e.getX();
y=(int)e.getY();
p1= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p1);
repaint();
break;
case 1://橡皮
x=(int)e.getX();
y=(int)e.getY();
p1= new Point(x, y, null, toolFlag, Econ);
paintInfo.addElement(p1);
repaint();
break;
default:
}
}
public void mouseMoved(MouseEvent e){}
public void update(Graphics g)
{
paint(g);
}
public void mousePressed(MouseEvent e)
{
Point p2;
switch(toolFlag){
case 3://直线
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 4://圆
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 5://矩形
x=(int)e.getX();
y=(int)e.getY();
p2= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
default:
}
}
public void mouseReleased(MouseEvent e)
{
Point p3;
switch(toolFlag){
case 0://画笔
paintInfo.addElement(cutflag);
break;
case 1://eraser
paintInfo.addElement(cutflag);
break;
case 3://直线
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 4://圆
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 5://矩形
x=(int)e.getX();
y=(int)e.getY();
p3= new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
default:
}
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==pen)//画笔
{toolFlag= 0;}
if(e.getSource()==eraser)//橡皮
{toolFlag= 1;}
if(e.getSource()==clear)//清除
{
toolFlag= 2;
paintInfo.removeAllElements();
repaint();
}
if(e.getSource()==drLine)//画线
{toolFlag= 3;}
if(e.getSource()==drCircle)//画圆
{toolFlag= 4;}
if(e.getSource()==drRect)//画矩形
{toolFlag= 5;}
if(e.getSource()==colchooser)//调色板
{
Color newColor= JColorChooser.showDialog(this,"调色板",c);
c= newColor;
}
if(e.getSource()==openPic)//打开图画
{
openPicture.setVisible(true);
if(openPicture.getFile()!=null)
{
int tempflag;
tempflag= toolFlag;
toolFlag= 2;
repaint();
try{
paintInfo.removeAllElements();
File filein= new File(openPicture.getDirectory(),openPicture.getFile());
picIn= new FileInputStream(filein);
VIn= new ObjectInputStream(picIn);
paintInfo=(Vector)VIn.readObject();
VIn.close();
repaint();
toolFlag= tempflag;
}
catch(ClassNotFoundException IOe2)
{
repaint();
toolFlag= tempflag;
System.out.println("can not read object");
}
catch(IOException IOe)
{
repaint();
toolFlag= tempflag;
System.out.println("can not read file");
}
}
}
if(e.getSource()==savePic)//保存图画
{
savePicture.setVisible(true);
try{
File fileout= new File(savePicture.getDirectory(),savePicture.getFile());
picOut= new FileOutputStream(fileout);
VOut= new ObjectOutputStream(picOut);
VOut.writeObject(paintInfo);
VOut.close();
}
catch(IOException IOe)
{
System.out.println("can not write object");
}
}
}
}//end paintboard
public class pb
{
public static void main(String args[])
{ new paintboard("画图程序");}
}
用Java一个简单的画图程序
下面是我以前做的小程序，希望能给你点帮助！
package menu;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class DaYin extends JFrame implements ActionListener{
public DaYin(){
Container c=this.getContentPane();
c.setLayout(new BorderLayout());
JMenuBar jmb=new JMenuBar();
JMenu jm=null;
jm=new JMenu("文件");
jmb.add(jm);
jm=new JMenu("编辑");
jmb.add(jm);
jm=new JMenu("打印");
JMenuItem jmi=new JMenuItem("打印预览");
jmi.addActionListener(this);
jm.add(jmi);
jmb.add(jm);
jm=new JMenu("帮助");
jmb.add(jm);
this.setJMenuBar(jmb);
this.setSize(1024,768);
this.setVisible(true);
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
public static void main(String[] args){
new DaYin();
}
public void update(Graphics g){
g.setColor(Color.black);
String title[]={"摘要","科目","子目或户名","借方金额","贷方金额"};
String danwei[]={"千","百","十","万","千","百","十","元","角","分"};
int csx=200;//打印x的初始坐标
int csy=200;//打印y的初始坐标
int x=csx;
int y=csy;
int a=x+20;//打印字体x的初始坐标
int b=y+20;//打印字体y的初始坐标
int row=7;//一共打印出几条横线
int cul=5;//一共打印出几条竖线
int hangju=30;//线与线之间的纵向间距
int lieju=100;//线与线之间的横向间距
int yy=hangju*row+y;
int c=yy+20;
g.setFont(new Font("行楷",Font.TYPE1_FONT,24));
g.drawString("记账凭证", x+160, y-40);//打印出记账凭证这几个字
g.drawLine(x+100, y-30, x+340, y-30);//打印出记账凭证下面的那条线
g.setFont(new Font("行楷",Font.TYPE1_FONT,13));
g.drawString("年月日第_______号", x+260, y-10);
//g.drawLine(x+430, y-10, x+470, y-10);
for(int i=0;i<=row;i++){
g.drawLine(x, y, cul*lieju+x+25, y);//此循环用于画出表格的行
if(i==0)
y+=hangju*2;
else
y+=hangju;
}
y=csy;
g.drawLine(x+lieju*3, y+hangju, cul*lieju+x, y+hangju);//打印出第一行半的横线
for(int j=0;j<=cul;j++){
g.drawLine(x, y, x, row*hangju+y);//此循环用于画出表格的列
x+=lieju;
}
x=csx;
for(int z=0;z<cul;z++){
g.setColor(Color.red);//设置颜色
g.setFont(new Font("",Font.TYPE1_FONT,13));//设置表头字体
if(z<3)
g.drawString(title[z], a, b+hangju/2);
else
g.drawString(title[z], a, b);//为表格添加表头
a+=lieju;
}//76-89打印出一个表格形状
int xx=lieju*3+x+10;
for(int v=0;v<=9;v++){
g.drawLine(xx, y+hangju, xx, row*hangju+y+hangju);//此循环用于画出表格的列
g.setFont(new Font("",Font.TYPE1_FONT,11));
g.drawString(danwei[v], xx-10, y+hangju+20);//为表格添加表头
if(v%2==0)
g.setColor(Color.red);//设置颜色
else
g.setColor(Color.BLUE);//设置颜色
xx+=10;
}
for(int n=0;n<9;n++){
g.drawLine(xx, y+hangju, xx, row*hangju+y+hangju);//此循环用于画出表格的列
g.drawString(danwei[n],xx-10, y+hangju+20);//为表格添加表头
if(n%2==0)
g.setColor(Color.red);//设置颜色
else
g.setColor(Color.BLUE);//设置颜色
xx+=10;
}
g.drawString(danwei[9],xx-10, y+hangju+20);
g.setColor(Color.black);//设置颜色
for(int i=0;i<=1;i++){
g.drawLine(x,yy, cul*lieju+x, yy);//此循环用于画出表格的行
yy+=hangju;
}
yy=hangju*row+y;
for(int j=0;j<=3;j++){
g.drawLine(x, yy, x,(row+1)*hangju+y);//此循环用于画出表格的列
if(j>0){
x+=lieju;
}else{
x+=lieju*3;
}
}//112-128打印出表格的最后一行单元格
x=csx;
g.setFont(new Font("",Font.TYPE1_FONT,13));
g.drawString("合计",x+60, c);
g.drawString("会计主管记账出纳审核制证", x+30, yy+50);
g.drawLine(cul*lieju+x+25, y, cul*lieju+x+25,(row+1)*hangju+y);//打印出最后一列
g.drawString("记",cul*lieju+x+6, y+15);
g.drawString("账", cul*lieju+x+6, y+35);
g.drawString("√", cul*lieju+x+6, y+55);//134-136为最后一列写入字体
g.drawString("附",cul*lieju+x+35, y+75);
g.drawString("件", cul*lieju+x+35, y+95);
g.drawString("张", cul*lieju+x+35, y+175);//134-136为最后一列后写入字体
}
public void actionPerformed(ActionEvent e){
// TODO Auto-generated method stub
if(e.getActionCommand().equals("打印预览")){
this.repaint();
}
}
}
使用drawLine()做了一个记账凭证。
执行点击"打印"子菜单"打印预览"就可显示出我们所画的"记账凭证表"
希望这个小程序能够给你点灵感
OK，本文到此结束，希望对大家有所帮助。