1樓：艾來木尼亞孜
這個裡面有畫圖功能，文字功能，聊天功能
2樓：lucky帥小武
這個我可以給你寫一個的
求一個java程式：繪圖程式包括畫圓，橢圓，線，矩形，自定義。並且可以調圖形顏色！ 30
3樓：匿名使用者
public enum shapetypes
public inte***ce shape
public class rectangle implements shape
public rectangle(int x, int y, int width, int height, color rectanglecolor)
@override
public void paint(graphics g)
}public class line implements shape
public line()
@override
public void paint(graphics g)
}public class circle implements shape
public circle(int x, int y, int radius, color circlecolor)
@override
public void paint(graphics g)
}public class sketchpadpanel extends canvas implements mouselistener, mousemotionlistener
/*** 撤銷方法
*/public void undo()
}/**
* 恢復撤銷方法
*/public void redo()
}/**
* 設定命令
* * @param type
*/public void setshapetype(shapetypes type)
/*** 設定顏色
* * @param color
*/public void setcolor(color color)
public void updete(graphics g)
/*** 繪製畫板
*/@override
public void paint(graphics g)
// 如果當前滑鼠沒有釋放
if (i**ousepressing) else
} else else
}break;
// 繪製圓形
case circle:
// 半徑為a*a + b*b的平方根
int radius = (int) math
.sqrt((beginx - currentx) * (beginx - currentx) + (beginy - currenty) * (beginy - currenty));
g.drawarc(beginx - radius / 2, beginy - radius / 2, radius, radius, 0, 360);
break;}}
}@override
public void mouseclicked(mouseevent e)
@override
public void mouseentered(mouseevent e)
@override
public void mouseexited(mouseevent e)
/*** 當滑鼠按下的時候獲得起始座標
*/@override
public void mousepressed(mouseevent e)
/*** 當滑鼠釋放時獲得當前座標
*/@override
public void mousereleased(mouseevent e) else
} else else
}currentshapes.push(rectangle);
break;
}repaint();
}@override
public void mousedragged(mouseevent e)
@override
public void mousemoved(mouseevent e)
}public class sketchpadframe extends jframe
private void initlistener()
});bluebutton.addactionlistener(new actionlistener()
});greenbutton.addactionlistener(new actionlistener()
});undobutton.addactionlistener(new actionlistener()
});redobutton.addactionlistener(new actionlistener()
});exitbutton.addactionlistener(new actionlistener()
});linebutton.addactionlistener(new actionlistener()
});circlebutton.addactionlistener(new actionlistener()
});rectanglebutton.addactionlistener(new actionlistener()
});}
public sketchpadframe()
/* ********************處理事件********************* */
private void undoaction(actionevent e)
private void redoaction(actionevent e)
private void exitaction(actionevent e)
private void lineaction(actionevent e)
private void circleaction(actionevent e)
private void rectangleaction(actionevent e)
private void redaction(actionevent e)
private void blueaction(actionevent e)
private void greenaction(actionevent e)
}/**
* * @author 不落的太陽(sean yang)
* @version 1.0
* @since jdk 1.8
* */
public class sketchpadmain
});}}
java畫圖板程式，用***beans做，要求畫圓，橢圓，直線，三角形，矩形，可以填充顏色和擦除
4樓：匿名使用者
樓上的**我做了一點點改正，我想現在可以正常執行了：
//#8.15
//#filename: shapemain.java
import java.awt.borderlayout;
import java.awt.button;
import java.awt.color;
import java.awt.container;
import java.awt.graphics;
import java.awt.panel;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;
import java.awt.event.mouseadapter;
import java.awt.event.mouseevent;
import java.awt.event.mouselistener;
import java.awt.event.mousemotionadapter;
import java.awt.event.mousemotionlistener;
import javax.swing.buttongroup;
import javax.swing.jframe;
import javax.swing.jpanel;
import javax.swing.uimanager;
//import javax.swing.***ponent;
public class shapemain extends jframe implements actionlistener,mouselistener,mousemotionlistenercatch(exception e)
new shapemain();
}//建構函式
public shapemain()
});//對滑鼠的輸入進行判斷並呼叫畫圖程式
paintingground.addmousemotionlistener(new mousemotionadapter()
else }}
});//各個控制元件的觸發事件
btline.addactionlistener(new actionlistener()
});btrectangle.addactionlistener(new actionlistener()
});btround.addactionlistener(new actionlistener()
});btellipse.addactionlistener(new actionlistener()
});tbfillstate.addactionlistener(new actionlistener()
});}
public void actionperformed(actionevent e)
public void mouseclicked(mouseevent e)
public void mousepressed(mouseevent e)
public void mousereleased(mouseevent e)
public void mouseentered(mouseevent e)
public void mouseexited(mouseevent e)
public void mousedragged(mouseevent e)
public void mousemoved(mouseevent e)
}class paintingground extends jpanel
//判斷是用實心還是空心的,
public void paint(graphics g)
}else
} }
public void drawline(int x1, int y1, int x2,int y2)
//具體的實現方式
public void drawrect(int x,int y,int width, int height)
public void drawround(int x,int y,int size)
public void drawellipse(int x,int y,int width,int height)
public void setfillstate(boolean isfill)}
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