樓主給你一個(gè)我編的，直接保存成pb.java編譯運(yùn)行，就是你要的畫(huà)圖功能
成都創(chuàng)新互聯(lián)公司-專業(yè)網(wǎng)站定制、快速模板網(wǎng)站建設(shè)、高性價(jià)比西鄉(xiāng)網(wǎng)站開(kāi)發(fā)、企業(yè)建站全套包干低至880元,成熟完善的模板庫(kù),直接使用。一站式西鄉(xiāng)網(wǎng)站制作公司更省心,省錢,快速模板網(wǎng)站建設(shè)找我們，業(yè)務(wù)覆蓋西鄉(xiāng)地區(qū)。費(fèi)用合理售后完善，十多年實(shí)體公司更值得信賴。
____________________________________________________________________
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;//畫(huà)筆大小
int Econ = 5;//橡皮大小
int toolFlag = 0;//toolFlag:工具標(biāo)記
//toolFlag工具對(duì)應(yīng)表：
//（0--畫(huà)筆）；（1--橡皮）；（2--清除）；
//（3--直線）；（4--圓）；（5--矩形）；
Color c = new Color(0,0,0); //畫(huà)筆顏色
BasicStroke size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//畫(huà)筆粗細(xì)
Point cutflag = new Point(-1, -1, c, 6, con);//截?cái)鄻?biāo)志
Vector paintInfo = null;//點(diǎn)信息向量組
int n = 1;
FileInputStream picIn = null;
FileOutputStream picOut = null;
ObjectInputStream VIn = null;
ObjectOutputStream VOut = null;
// *工具面板--畫(huà)筆，直線，圓，矩形，多邊形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear ,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label 顏色,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();
/*各工具按鈕及選擇項(xiàng)*/
//顏色選擇
ColChoice = new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//畫(huà)筆大小選擇
SizeChoice = new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小選擇
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("畫(huà)筆");
drLine = new Button("畫(huà)直線");
drCircle = new Button("畫(huà)圓形");
drRect = new Button("畫(huà)矩形");
openPic = new Button("打開(kāi)圖畫(huà)");
savePic = new Button("保存圖畫(huà)");
colchooser = new Button("顯示調(diào)色板");
//各組件事件監(jiān)聽(tīng)
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);
顏色 = new Label("畫(huà)筆顏色",Label.CENTER);
大小B = new Label("畫(huà)筆大小",Label.CENTER);
大小E = new Label("橡皮大小",Label.CENTER);
//面板添加組件
toolPanel.add(openPic);
toolPanel.add(savePic);
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(顏色); 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,"打開(kāi)圖畫(huà)",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture = new FileDialog(this,"保存圖畫(huà)",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; in ;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://畫(huà)筆
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://畫(huà)直線
Line2D line2 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;
case 4://畫(huà)圓
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://畫(huà)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?cái)啵^(guò)
i=i+1;
break;
default :
}//end switch
}//end if
}//end for
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//預(yù)選顏色
{
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)//畫(huà)筆大小
{
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://畫(huà)筆
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://直線
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 4: //圓
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://畫(huà)筆
paintInfo.addElement(cutflag);
break;
case 1: //eraser
paintInfo.addElement(cutflag);
break;
case 3://直線
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: //圓
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)//畫(huà)筆
{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)//畫(huà)線
{toolFlag = 3;}
if(e.getSource()==drCircle)//畫(huà)圓
{toolFlag = 4;}
if(e.getSource()==drRect)//畫(huà)矩形
{toolFlag = 5;}
if(e.getSource()==colchooser)//調(diào)色板
{
Color newColor = JColorChooser.showDialog(this,"調(diào)色板",c);
c = newColor;
}
if(e.getSource()==openPic)//打開(kāi)圖畫(huà)
{
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)//保存圖畫(huà)
{
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("畫(huà)圖程序"); }
}
java在JFrame上畫(huà)東西，主要是使用paint方法，代碼如下：
import?java.awt.Color;
import?java.awt.Graphics;
import?javax.swing.JFrame;
import?javax.swing.JPanel;
public?class?Draw?extends?JFrame{
JPanel??jPanel=new?JPanel();
public?Draw()?{
jPanel.setBackground(Color.red);
add(jPanel);?
Drawation?drawaction=new?Drawation();//添加畫(huà)圖，把上面jpanel的設(shè)置給覆蓋了；要是先添加畫(huà)圖再添加
add(drawaction);????????????????????//jpanel則把畫(huà)圖覆蓋了
}
public?static?void?main(String[]?args){
Draw?draw=new?Draw();
draw.setTitle("abc");
draw.setSize(300,300);
draw.setVisible(true);
draw.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
class?Drawation?extends?JPanel{
public?void?paintComponent(Graphics?g){
super.paintComponents(g);
g.drawString("agagh",?50,?45);
}
}
運(yùn)行結(jié)果如下：
下載一個(gè)rational rose軟件，IBM的。用這個(gè)畫(huà)類圖很簡(jiǎn)單。進(jìn)入rational rose 在logical view那右鍵new-class diagram(這個(gè)就是類圖了),進(jìn)去之后畫(huà)類,畫(huà)完之后,右鍵選擇new attritube就是添加屬性,new operation 是添加方法。已經(jīng)告訴你怎么做了，自己動(dòng)動(dòng)手吧，很簡(jiǎn)單的。
用jfreechart
jfreechart繪制柱狀圖
import java.io.File;
import java.io.IOException;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
/*
* 繪制柱狀圖
*你亮哥
* */
public class BarChart3DDemo
{
public static void main(String[] args)
{
try
{
//設(shè)置主題
ChartFactory.setChartTheme(Theme.getTheme());
//構(gòu)造數(shù)據(jù)
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(100, "JAVA","1");
dataset.addValue(200, "js","1");
dataset.addValue(200, "C++", "2");
dataset.addValue(300, "C", "3");
dataset.addValue(400, "HTML", "4");
dataset.addValue(400, "CSS", "5");
/*
* public static JFreeChart createBarChart3D(
* java.lang.String title, 設(shè)置圖表的標(biāo)題
* java.lang.String categoryAxisLabel, 設(shè)置分類軸的標(biāo)示
* java.lang.String valueAxisLabel, 設(shè)置值軸的標(biāo)示
* CategoryDataset dataset, 設(shè)置數(shù)據(jù)
* PlotOrientation orientation, 設(shè)置圖表的方向
* boolean legend, 設(shè)置是否顯示圖例
* boolean tooltips,設(shè)置是否生成熱點(diǎn)工具
* boolean urls) 設(shè)置是否顯示url
*/
JFreeChart chart = ChartFactory.createBarChart3D("編程語(yǔ)言統(tǒng)計(jì)", "語(yǔ)言",
"學(xué)習(xí)人數(shù)", dataset, PlotOrientation.VERTICAL, true, false,
false);
//保存圖表
ChartUtilities.saveChartAsPNG(new File("E:/chart/BarChart3D.png"), chart, 800, 500);
System.out.println("繪圖完成");
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
===================================================================================
//一條線 有點(diǎn) 有數(shù)
package Test;
import java.awt.Color;
import java.awt.Font;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisSpace;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardXYItemLabelGenerator;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.time.Month;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.TextAnchor;
public class try123 {
public static void main(String[] args){
//首先構(gòu)造數(shù)據(jù)
TimeSeries timeSeries = new TimeSeries("BMI", Month.class);
// 時(shí)間曲線數(shù)據(jù)集合
TimeSeriesCollection lineDataset = new TimeSeriesCollection();
// 構(gòu)造數(shù)據(jù)集合
timeSeries.add(new Month(1, 2009), 45);
timeSeries.add(new Month(2, 2009), 46);
timeSeries.add(new Month(3, 2009), 1);
timeSeries.add(new Month(4, 2009), 500);
timeSeries.add(new Month(5, 2009), 43);
timeSeries.add(new Month(6, 2009), 324);
timeSeries.add(new Month(7, 2009), 632);
timeSeries.add(new Month(8, 2009), 34);
timeSeries.add(new Month(9, 2009), 12);
timeSeries.add(new Month(10, 2009), 543);
timeSeries.add(new Month(11, 2009), 32);
timeSeries.add(new Month(12, 2009), 225);
lineDataset.addSeries(timeSeries);
JFreeChart chart = ChartFactory.createTimeSeriesChart("", "date", "bmi", lineDataset, true, true, true);
//增加標(biāo)題
chart.setTitle(new TextTitle("XXXBMI指數(shù)", new Font("隸書(shū)", Font.ITALIC, 15)));
chart.setAntiAlias(true);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setAxisOffset(new RectangleInsets(10,10,10,10));//圖片區(qū)與坐標(biāo)軸的距離
plot.setOutlinePaint(Color.PINK);
plot.setInsets(new RectangleInsets(15,15,15,15));//坐標(biāo)軸與最外延的距離
// plot.setOrientation(PlotOrientation.HORIZONTAL);//圖形的方向，包括坐標(biāo)軸。
AxisSpace as = new AxisSpace();
as.setLeft(25);
as.setRight(25);
plot.setFixedRangeAxisSpace(as);
chart.setPadding(new RectangleInsets(5,5,5,5));
chart.setNotify(true);
// 設(shè)置曲線是否顯示數(shù)據(jù)點(diǎn)
XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)plot.getRenderer();
xylineandshaperenderer.setBaseShapesVisible(true);
// 設(shè)置曲線顯示各數(shù)據(jù)點(diǎn)的值
XYItemRenderer xyitem = plot.getRenderer();
xyitem.setBaseItemLabelsVisible(true);
xyitem.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.INSIDE10, TextAnchor.BASELINE_LEFT));
xyitem.setBaseItemLabelGenerator(new StandardXYItemLabelGenerator());
xyitem.setBaseItemLabelFont(new Font("Dialog", 1, 14));
plot.setRenderer(xyitem);
//顯示
ChartFrame frame = new ChartFrame("try1", chart);
frame.pack();
frame.setVisible(true);
}
}
重慶分公司
重慶分公司
