JAVA程序设计上机考试第五个题实现代码如下：

JA V A程序设计上机考试第五个题实现代码如下：

View包：

package view;

import java.awt.*;

import controller.*;

import javax.swing.*;

public class MainWindow extends JFrame{

//初始化变量名

public static MyPanel mypanel;

public static JPanel labelPanel;

public static JLabel jb;

public static JPanel inputPanel;

public static JLabel jlabel;

public static JTextField jtextField;

public static JPanel buttonPanel;

public MainWindow(String title, String bgImage){

setTitle(title);//设置窗体名字

//设置初始窗体大小

Dimension dim=Toolkit.getDefaultToolkit().getScreenSize();

Dimension minDim=new Dimension();

setBounds(dim.width/4,dim.height/4,dim.width/2,dim.height/2);

//设置窗体最小显示的大小

minDim.width=dim.width/2;

minDim.height=dim.height/2;

setMinimumSize(minDim);

//设置面板布局

Container contentPane=getContentPane();

contentPane.setLayout(new BorderLayout());

//获取系统字体

GraphicsEnvironment gg=GraphicsEnvironment.getLocalGraphicsEnvironment();

String ss[]=gg.getAvailableFontFamilyNames();

String systemFontName="default";

String copyrightFontName="default";

for(int i=0;i

if(ss[i].equals("黑体"))

systemFontName="黑体";

if(ss[i].equals("楷体"))

copyrightFontName="楷体";

}

mypanel=new MyPanel(bgImage);//背景图像面板

mypanel.setLayout(null);//设置背景图像面板为null布局

//组装系统名称面板systemPanel

labelPanel=new JPanel();

labelPanel.setLayout(new FlowLayout());

//设置systemPanel面板对齐方式

labelPanel.setAlignmentX(CENTER_ALIGNMENT);

labelPanel.setAlignmentY(CENTER_ALIGNMENT);

labelPanel.setSize(520,45);

int x=(this.getWidth()-labelPanel.getWidth())/2;

int y=(int)(this.getHeight()*0.115);

labelPanel.setLocation(x, y);//设置系统名称面板位置

labelPanel.setOpaque(false);//设置面板透明

//生成系统名称标签

JLabel systemTitle=new JLabel("请输入数据");

//设置标签字体

systemTitle.setFont(new Font(systemFontName,Font.BOLD,30)); //设置标签字体颜色

systemTitle.setForeground(Color.blue);

systemTitle.setAlignmentX(CENTER_ALIGNMENT);

systemTitle.setAlignmentY(CENTER_ALIGNMENT);

labelPanel.add(systemTitle);//加载系统名称标签到系统名称面板

//组装输入面板inputPanel

inputPanel=new JPanel();

inputPanel.setAlignmentX(CENTER_ALIGNMENT);

inputPanel.setAlignmentY(CENTER_ALIGNMENT);

inputPanel.setSize(320, 80);

x=(this.getWidth()-inputPanel.getWidth())/2;

y=this.getHeight()/2-inputPanel.getHeight();

inputPanel.setLocation(x, y);//设置输入面板位置

inputPanel.setLayout(new FlowLayout());

inputPanel.setOpaque(false);

jtextField=new JTextField(15);

jtextField.setSize(200,35);

jtextField.setForeground(Color.blue);

jtextField.setFont(new Font(systemFontName,Font.BOLD,24)); inputPanel.add(jtextField);

jb=new JLabel("/21.3");

jb.setFont(new Font(systemFontName,Font.BOLD,24));

jb.setForeground(Color.blue);

jb.setSize(100, 25);

inputPanel.add(jb);

//组装按钮面板buttonPanel

buttonPanel=new JPanel();

buttonPanel.setAlignmentX(CENTER_ALIGNMENT);

buttonPanel.setAlignmentY(CENTER_ALIGNMENT);

buttonPanel.setSize(400, 40);