Sea Bamboo is in the north area of Sichuan Province.()
第1题:
本题的功能是求两个交叉图形的并、减、交和异或。窗口中有4个单选按钮和一个图形面板,面板中有两个交叉的图形,选中其中一个单选按钮,图形面板中以黑色填充的方式显示运算结果。
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 AreaTestFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_
ON_CLOSE);
frame.show();
}
}
class AreaTestFrame. extends JFrame
{
public AreaTestFrame()
{
setTitle("java3");
setSize(WIDTH,HEIGHT);
areal
=new Area(new Ellipse2D.Double(100,100,
150,100));
area2
=new Area(new Rectangle2D.Double(150,150,
150,100));
Container confentPane=getContentpane();
panel=new
JPanel()
{
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2=(Graphics2D)g;
g2.draw(areal);
g2.draw(area2);
if(area!=null)g2.fill(area);
}
};
contentPane. add(panel,BorderLayout. CEN-
TER);
JPanel buttonPanel=new JPanel();
ButtonGroup group=new ButtonGroup();
JRadioButton addButton=new JRadioButton("
并",false);
buttonPanel.add(addButton);
group.add(addButton);
addButton.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
area=new Area();
area.add(areal);
area.add(area2);
panel.repaint();
}
});
JRadioButton subtractButton
=new JRadioButton("减",false);
buttonPanel.add(subtractButton);
group.add(subtractButton);
subtractButton.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
area=new Area();
area.add(areal);
area.subTract(area2);
panel.repaint();
}
});
JRadioButton intersectButton
=new JRadioButton("交",false);
buttonPanel.add(intersectButton);
group.add(intersectButton);
intersectButton.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
area=new Area():
area.add(areal);
area.intersect(area2);
panel.repaint();
}
});
JRadioButton exclusiveCIrButton
=new JRadioButton(“异或”,false);
buttonPanel.add(exelusiveOrButton);
group.add(exclusiveOrButton);
exclusiveOrButton.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
area=new Area();
area.add(areal);
area.exclusiveor(area2);
panel.repaint();
}
});
contentPane.add(buttonPanel,BorderLayout.
NORTH);
}
private JPanel panel;
private Area area;
private Area areal;
private Area area2;
private static final int WIDTH=400;
private static final int HEIGHT=400;
}
第2题:
69、Bamboo在英语中几乎没有什么文化内涵。
第3题:
Bamboo在英语中几乎没有什么文化内涵。
第4题:
If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you, what winds can you expect in the Southern Hemisphere? ______.
A.South-southwesterly
B.North-northwesterly
C.South-southeasterly
D.North-northeasterly
第5题:
nausea晕船中的词根-sea-的涵义就是“sea海”。
第6题:
7、nausea晕船中的词根-sea-的涵义就是“sea海”。