java大作業完成一個繪圖軟體（用java畫圖）

本文目錄一覽：

• 1、在用Java做畫圖軟體，畫完時想在圖形處添加文本框以輸入文字，怎麼搞？
• 2、JAVA繪圖軟體
• 3、java 繪圖程序

在用Java做畫圖軟體，畫完時想在圖形處添加文本框以輸入文字，怎麼搞？

LZ知道驗證碼不？

一樣的道理，接收用戶輸入的內容，傳給圖像構造類，然後輸出在客戶端就可以了，一樣的！

怎麼可能在圖片裡面給個文本框讓用戶輸入呢？開玩笑呢！！

JAVA繪圖軟體

html

head

body

table width=”600″ height=”400″ cellpadding=”0″ cellspacing=”0″ border=”1″ bordercolordark=”#000000″ id=”table” style=”font-size:16px; color: #000000;font-weight:bold;”

script

function GetALine( )

{

var fso, f, s;

s = “”;

fso = new ActiveXObject(“Scripting.FileSystemObject”);

f = fso.OpenTextFile(‘d:\\info.txt’, 1, false);

var ss=[]

while (!f.AtEndOfStream){

ms= f.ReadLine( ).match(/name:([^|]+)\|phone：(.+)/);

document.write(

‘trtd ‘,ms[1] ,’/tdtd width=”259″ ‘,ms[2],’/td/tr’

);

}

f.Close( );

}

GetALine();

/script

/table

/head

/html

java 繪圖程序

我基於你原來畫圖的方法，添加了事件觸發的命令b[j].setActionCommand(“b” + j);否則你不能在事件響應處理的方法中使用e.getActionCommand()，而且字元串的比較用equals方法比較好。現在可以運行了，你可以看一下：

import java.applet.Applet;

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

public class drawing extends Applet implements ActionListener {

Button b[] = new Button[5];

String fontname = “仿宋_GB2312”;

int style = Font.PLAIN;

int size = 24;

int index = 0;

Font myfont;

public void init() {

setSize(700,700);

myfont = new Font(fontname, style, size);

b[0] = new Button(“扇形”);

b[1] = new Button(“圓形”);

b[2] = new Button(“三角形”);

b[3] = new Button(“長方形”);

b[4] = new Button(“橢圓形”);

for (int j = 0; j b.length; j++) {

b[j].setBounds(10, 10, 50, 20);

b[j].addActionListener(this);

b[j].setActionCommand(“b” + j);

add(b[j]);

}

}

public void actionPerformed(ActionEvent e) {

if (e.getActionCommand().equals(“b0”)) {

index = 0;

repaint();

}

if (e.getActionCommand().equals(“b1”)) {

index = 1;

repaint();

}

if (e.getActionCommand().equals(“b2”)) {

index = 2;

repaint();

}

if (e.getActionCommand().equals(“b3”)) {

index = 3;

repaint();

}

if (e.getActionCommand().equals(“b4”)) {

index = 4;

repaint();

}

}

public void paint(Graphics g) {

switch (index) {

case 0:

g.fillArc(0, 60, 80, 60, 30, 120);

break;

case 1:

g.drawOval( 300, 50, 60, 60);

break;

case 2:

Polygon filledPolygon = new Polygon();

filledPolygon.addPoint(380, 50);

filledPolygon.addPoint(380, 110);

filledPolygon.addPoint(450, 90);

g.drawPolygon(filledPolygon);

break;

case 3:

g.drawRect( 200, 50, 80, 60);

break;

case 4:

g.drawOval(100, 50, 80, 60);

break;

default:

g.fillArc(0, 60, 80, 60, 30, 120);

break;

}

}

/*

* public void paint(Graphics g) { g.fillArc( 0, 60, 80, 60, 30, 120);

* //繪製扇形 g.drawOval( 100, 50, 80, 60); g.drawRect( 200, 50, 80, 60);

* g.drawOval( 300, 50, 60, 60); Polygon filledPolygon=new Polygon();

* filledPolygon.addPoint(380,50); filledPolygon.addPoint(380,110);

* filledPolygon.addPoint(450,90); g.drawPolygon(filledPolygon); }

*/

}