java控件阴影代码 java设置控件大小

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用java编写宙心理阴影面积 (5 分)在线等明天要交

先来说算法，看图比较明显。

1.直接算三角形面积，底边就是长方形的斜边，高就是x,y这个点到底边的距离。

2.用长方形一半的面积，减去两个三角形s1，s2，再减去一个长方形t1面积即可。见下图

看题目的提示，应该是按第二种算法计算了，以下是java代码。

package test;

import java.util.Scanner;

public class xlyy {

int maxX = 100;

int maxY = 100;

public static int calculate(int x,int y){

int s1,s2,t1,returnValue;

s1 = y*x/2;

s2 = (100-x)*(100-y)/2;

t1=(100-x)*y;

returnValue = 100*100/2-s1-s2-t1;

return returnValue;

}

public static void main(String [] args){

Scanner input = new Scanner(System.in);

System.out.println("请输入x的整数（0至100间）");

int x = input.nextInt();

System.out.println("请输入y的整数（0至100间）");

int y = input.nextInt();

System.out.println("心理阴影面积是："+xlyy.calculate(x, y));

}

验证结果

相关问答

Q1: java怎么给窗体边框四周添加阴影和半透明

有各种 Border 可以写java控件阴影代码的。。。。。。。。。。。

javax.swing.border

Interface Border

All Known Implementing Classes:

AbstractBorder, BasicBorders.ButtonBorder, BasicBorders.FieldBorder, BasicBorders.MarginBorder, BasicBorders.MenuBarBorder, BasicBorders.RadioButtonBorder, BasicBorders.RolloverButtonBorder, BasicBorders.SplitPaneBorder, BasicBorders.ToggleButtonBorder, BevelBorder, BorderUIResource, BorderUIResource.BevelBorderUIResource, BorderUIResource.CompoundBorderUIResource, BorderUIResource.EmptyBorderUIResource, BorderUIResource.EtchedBorderUIResource, BorderUIResource.LineBorderUIResource, BorderUIResource.MatteBorderUIResource, BorderUIResource.TitledBorderUIResource, CompoundBorder, EmptyBorder, EtchedBorder, LineBorder, MatteBorder, MetalBorders.ButtonBorder, MetalBorders.Flush3DBorder, MetalBorders.InternalFrameBorder, MetalBorders.MenuBarBorder, MetalBorders.MenuItemBorder, MetalBorders.OptionDialogBorder, MetalBorders.PaletteBorder, MetalBorders.PopupMenuBorder, MetalBorders.RolloverButtonBorder, MetalBorders.ScrollPaneBorder, MetalBorders.TableHeaderBorder, MetalBorders.TextFieldBorder, MetalBorders.ToggleButtonBorder, MetalBorders.ToolBarBorder, SoftBevelBorder, StrokeBorder, TitledBorder

Q2: 各位大虾，请问如何用Java实现阴影效果 0

JS实现阴影是这个括号后面是括号内可以填写的参数 box-shadow:(inset内阴影)水平偏移量垂直偏移量羽化范围阴影增加面积颜色

Q3: JAVA swing怎么设置边框阴影效果

建立一个基于对话框的工程MultiThread6，在对话框IDD_MULTITHREAD6_DIALOG中加入一个按钮IDC_UI_THREAD，标题为“用户界面线程”

右击工程并选中“New Class…”为工程添加基类为CWinThread派生线程类CUIThread。

Q4: Android如何纯java代码实现字体阴影效果

Android实现纯java代码字体阴影效果，主要是通过activity的draw方法，进行重新绘制，如下代码：

package canvas.test;

import android.app.Activity;

import android.os.Bundle;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.PorterDuff;

import android.graphics.PorterDuff.Mode;

import android.graphics.PorterDuffXfermode;

import android.graphics.Rect;

import android.graphics.RectF;

import android.graphics.drawable.Drawable;

import android.view.View;

public class ShaderEffect extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(new ImageEffect(this));

}

class ImageEffect extends View{

Paint paint;

public ImageEffect (Context context){

super(context);

paint = new Paint();//初始化画笔，为后面阴影效果使用。

paint.setAntiAlias(true);//去除锯齿。

paint.setShadowLayer(5f, 5.0f, 5.0f, Color.BLACK);//设置阴影层，这是关键。

paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

}

@Override

public void onDraw(Canvas canvas){

super.onDraw(canvas);

int posX = 20;

int posY = 50;

int PicWidth,PicHegiht;

Drawable drawable = getResources().getDrawable(R.drawable.button);

Drawable dbe = getResources().getDrawable(R.drawable.button).mutate();//如果不调用mutate方法，则原图也会被改变，因为调用的资源是同一个，所有对象是共享状态的。

Drawable drawTest = getResources().getDrawable(R.drawable.button);

Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.button);

PicWidth = drawable.getIntrinsicWidth();

PicHegiht = drawable.getIntrinsicHeight();

drawTest.setBounds(posX, (2 * posY) + PicHegiht, posX + PicWidth, (2 * posY) + 2 * PicHegiht );

drawable.setBounds(posX,posY,posX+PicWidth,posY+PicHegiht);

dbe.setBounds(0, 0, PicWidth, PicHegiht);

canvas.drawColor(Color.WHITE);//设置画布颜色

canvas.save(Canvas.MATRIX_SAVE_FLAG);

dbe.setColorFilter(0x7f000000,PorterDuff.Mode.SRC_IN);

canvas.translate(posX + (int)(0.9 * PicWidth/2), posY + PicHegiht/2);//图像平移为了刚好在原图后形成影子效果。

canvas.skew(-0.9F, 0.0F);//图像倾斜效果。

canvas.scale(1.0f, 0.5f);//图像（其实是画布）缩放，Y方向缩小为1/2。

dbe.draw(canvas);//此处为画原图像影子效果图，比原图先画，则会在下层。

drawable.clearColorFilter();

canvas.restore();

canvas.save(Canvas.MATRIX_SAVE_FLAG);

drawable.draw(canvas);//此处为画原图像，由于canvas有层次效果，因此会盖在影子之上。

canvas.restore();

//默认无效果原图

canvas.save(Canvas.MATRIX_SAVE_FLAG);

drawTest.draw(canvas);

canvas.restore();

//图片阴影效果

canvas.save(Canvas.MATRIX_SAVE_FLAG);

//Rect rect = new Rect(2*posX + PicWidth, 2*posY + PicHegiht, 2*posX + 2*PicWidth, 2*posY + 2*PicHegiht);//此为理论上的阴影图坐标

Rect rect = new Rect(2*posX + PicWidth + 3, 2*posY + PicHegiht + 3, 2*posX + 2*PicWidth - 2, 2*posY + 2*PicHegiht - 2);

//由于图片的实际尺寸比显示出来的图像要大一些，因此需要适当更改下大小，以达到较好的效果

RectF rectF = new RectF(rect);

canvas.drawRoundRect(rectF, 10f, 10f, paint);//在原有矩形基础上，画成圆角矩形，同时带有阴影层。

canvas.drawBitmap(bmp, 2*posX + PicWidth, 2*posY + PicHegiht, null);//画上原图。

canvas.restore();

}

Q5: JAVA 里的JTextField和JButton控件的边框可以设置阴影么？

1.普通按钮上面贴个图.2.一个图片,点击触发事件,类似于按钮.如果是button推荐使用样式表,我把我收藏的几个给你吧:style

.btn {

BORDER-RIGHT: #7b9ebd 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#7b9ebd 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#cecfde); BORDER-LEFT: #7b9ebd

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #7b9ebd 1px solid

}

.btn1_mouseout {

BORDER-RIGHT: #7EBF4F 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#7EBF4F 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#B3D997); BORDER-LEFT: #7EBF4F

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #7EBF4F 1px solid

}

.btn1_mouseover {

BORDER-RIGHT: #7EBF4F 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#7EBF4F 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#CAE4B6); BORDER-LEFT: #7EBF4F

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #7EBF4F 1px solid

}

.btn2 {padding: 2 4 0 br 4;font-size:12px;height:23;background-color:#ece9d8;border-width:1;}

.btn3_mouseout {

BORDER-RIGHT: #2C59AA 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#2C59AA 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#C3DAF5); BORDER-LEFT: #2C59AA

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #2C59AA 1px solid

}

.btn3_mouseover {

BORDER-RIGHT: #2C59AA 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#2C59AA 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#D7E7FA); BORDER-LEFT: #2C59AA

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #2C59AA 1px solid

}

.btn3_mousedown

{

BORDER-RIGHT: #FFE400 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#FFE400 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#C3DAF5); BORDER-LEFT: #FFE400

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #FFE400 1px solid

}

.btn3_mouseup {

BORDER-RIGHT: #2C59AA 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#2C59AA 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#ffffff, EndColorStr=#C3DAF5); BORDER-LEFT: #2C59AA

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #2C59AA 1px solid

}

.btn_2k3 {

BORDER-RIGHT: #002D96 1px solid; PADDING-RIGHT: 2px; BORDER-TOP:

#002D96 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER:

progid:DXImageTransform.Microsoft.Gradient(GradientType=0,

StartColorStr=#FFFFFF, EndColorStr=#9DBCEA); BORDER-LEFT: #002D96

1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px;

BORDER-BOTTOM: #002D96 1px solid

}

.test{

width:200px;

}

/style

button class="btn test"Button样式(btn)/buttonbr/br/

button class="btn1_mouseout test"Button样式(btn1_mouseout)/buttonbr/br/

button class="btn1_mouseover test"Button样式(btn1_mouseover)/buttonbr/br/

button class="btn2 test"Button样式(btn2)/buttonbr/br/

button class="btn3_mouseout test"Button样式(btn3_mouseout)/buttonbr/br/

button class="btn3_mouseover test"Button样式(btn3_mouseover)/buttonbr/br/

button class="btn3_mousedown test"Button样式(btn3_mousedown)/buttonbr/br/

button class="btn3_mouseup test"Button样式(btn3_mouseup)/buttonbr/br/

button class="btn_2k3 test"Button样式(btn_2k3)/buttonbr/br/

button class="btn3_mouseout test" onmouseover="this.className='btn3_mouseover test'" onmouseout="this.className='btn3_mouseout test'" onmousedown="this.className='btn3_mousedown test'"Button全功能样式/buttonbr/br/

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