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问题 判断题

申请人、利害关系人申请行政机关组织听证的应当承担行政机关组织听证的费用。

答案

参考答案：错

解析： 《中华人民共和国行政许可法》第47条规定：“申请人、利害关系人在被告知听证权利之日起五日内提出听证申请的，行政机关应当在二十日内组织听证。申请人、利害关系人不承担行政机关组织听证的费用。”组织听证的费用，由行政机关承担，申请人、利害关系人不承担听证的费用。作出这样的规定，是为了保障当事人行使听证的权利。

选择题

下列溶液中通入SO2一定不会产生沉淀的是（　　）

A．Ba（OH）2

B．Ba（NO3）2

C．Na2S

D．BaCl2
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填空题

本题的功能是对图形进行操作，包括旋转、移位、放大和剪切。窗口中有4个单选按钮和一个图形面板，图形面板中有一个矩形和该矩形移位操作后的图形，任选其中一个单选按钮，则图形面板中将显示该操作后的图形。单选按钮，则图形面板中将显示该操作后的图形。
import java. awt. * ;
import java. awt. event. * ;
import java. awt. geom. * ;
import java. util. * ;
import javax. swing. * ;
public class java3

public static void main(String[] args)

JFrame frame=new TransformTestFrame();
frame. setDefaultCloseOperation(JFrame. EXIT_ON_CLOSE);
frame. show();


class TransformTest extends JFrame

public TransformTestFrame()

setTitle("java3");
setSize(WIDTH, HEIGHT);
Container contentPane=getContentPane();
canvas=new TransformPanel();
contentPane. add(canvas, BorderLayout. CENTER);
JPanel buttonPanel=new JPanel();
ButtonGroup group=new ButtonGroup();
JRadioButton rotateButton
=new JRadioButton("旋转", true);
buttonPanel. add(rotateButton);
group. add(rotateButton);
rotateButton. addActionListener(new
ActionListener()

public void actionPerformed(ActionEvent event)

canvas. setRotate();

);
JRadioButton translateButton
=new JRadioButton("移位", false);
buttonPanel. add (translateButton);
group. add(translateButton);
translateButton. addActionListener (new
ActionListener()

public void actionPerformed(ActionEvent event)

canvas. setTranslate();

);
JRadioButton scaleButton
=new JRadioButton("放大", false);
buttonPanel. add(scaleButton);
group. add(scaleButton);
scaleButton. addActionListener(new
ActionListener()

public void actionPerformed(ActionEvent event)

canvas. setScale();

);
JRadioButton shearButton
=new JRadioButton("剪切", false);
buttonPanel. add(shearButton);
group. add(shearButton);
shearButton. addActionListener(new
ActionListener()

public void actionPerformed(AetionEvent event)

canvas. setShear();

);
contentPane. add(buttonPanel. BorderLayout. NORTH);

private TransformPanel canvas;
private static final int WIDTH=300;
private static final int HEIGHT=300;

class TransformPanel extend JPanel

public TransformPanel()

square = new Rectangle2D. Double(-50,-50,100,100);
t=new AffineTransform();
setRotate();

public void paintComponent()

super. paintComponent(g);
Graphics2D g2=(Graphics2D)g;
g2. translate(getWidth()/2, getHeight()/2);
g2. setPaint(Color, gray);
g2. draw(square);
g2. transform(t);
g2. setPaint(Color. black);
g2. draw(square);

public void setRotate()

t. setToRotation(Math. toRadians(30));
repaint();

public void setTranslate()

t. setToTranslation(20,15);
repaint();

public void setScale()

t. setToScale(2.0,1.5);
repaint();

public void setShear()

t. setToShear(-0.2,0);
repaint();
private Rectangle2D square;
private AffineTransform t;
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