画java页面有什么工具？网页是的是什么

编程之家2023-10-1396次浏览

各位老铁们好，相信很多人对画java页面有什么工具都不是特别的了解，因此呢，今天就来为大家分享下关于画java页面有什么工具以及网页是的是什么的问题知识，还望可以帮助大家，解决大家的一些困惑，下面一起来看看吧！

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;