Java实现MVC球体
Java实现一个模型、两个视图和两个控制器的功能软件，即采用MVC模式或者说是观察者模式，本程序通过输入球体半径，显示球体形状，面积体积等
Sphere.java
package Model;
import java.util.Observable;
public class Sphere extends Observable {
private double radius;//球体半径
private double area;//球体面积
private double volume;//球体体积
public Sphere()
{
radius=100d;
area=4*Math.PI*Math.pow(radius, 2);
volume=4*Math.PI*Math.pow(radius, 3)/3;
}
public double getRadius()
{
return radius;
}
public double getArea()
{
return area;
}
public double getVolume()
{
return volume;
}
public void setRadius(double radius)
{
this.radius = radius;
this.area = 4*Math.PI*Math.pow(radius, 2);
this.volume=4*Math.PI*Math.pow(radius, 3)/3;
this.setChanged();
this.notifyObservers();
}
}
textView.java
package View;
import java.util.Observer;
import java.util.Observable;
import java.text.NumberFormat;
import javax.swing.*;
import Controller.TextController;
import Model.Sphere;
import java.awt.*;
import java.awt.event.*;
public class TextView extends JPanel implements Observer
{
private JLabel radiusLab;//提示用户输入球体半径
private JTextField radiusTextField;//接受用户输入球体半径
//private JLabel radiusRang;
private JLabel areaLab;//显示球体面积
private JTextField areaTextField;//显示输入球体半径对应的面积
private JLabel volumeLab;//显示球体体积
private JTextField volumeTextField;//显示输入球体半径对应的体积
public TextView()
{
try {
Init();
}
catch(Exception e) {
e.printStackTrace();
}
}
private void Init() throws Exception {
radiusLab=new JLabel("球体半径");
radiusLab.setForeground(new Color(0,165,168));
//radiusRang=new JLabel("[0-200]");
radiusTextField = new JTextField(12);
radiusTextField.setForeground(new Color(223,100,158));
radiusTextField.setBackground(new Color(210,204,230));
areaLab=new JLabel("球体面积");
areaLab.setForeground(new Color(0,165,168));
areaTextField = new JTextField(12);
areaTextField.setBackground(new Color(193,219,219));
areaTextField.setEditable(fal
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资源详情
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