Java中定义Phone类，有品牌，颜色，价格属性，价格范围在200～8000，有打电话发短信的方法，创建对象输出Phone所有信息

下面是Java中Phone类的定义：

public class Phone {
    private String brand;
    private String color;
    private int price;
    
    public Phone(String brand, String color, int price) {
        this.brand = brand;
        this.color = color;
        if (price < 200 || price > 8000) {
            throw new IllegalArgumentException("Price must be between 200 and 8000");
        }
        this.price = price;
    }
    
    public void call(String number) {
        System.out.println("Calling " + number + " with " + brand + " phone");
    }
    
    public void sendMessage(String message, String number) {
        System.out.println("Sending message '" + message + "' to " + number + " with " + brand + " phone");
    }
    
    public String getBrand() {
        return brand;
    }
    
    public String getColor() {
        return color;
    }
    
    public int getPrice() {
        return price;
    }
    
    @Override
    public String toString() {
        return "Phone [brand=" + brand + ", color=" + color + ", price=" + price + "]";
    }
}

我们在构造方法中对价格进行了范围限制，如果不在200～8000的范围内，则抛出IllegalArgumentException异常。

在类中定义了打电话和发短信的方法。我们使用toString()方法来输出Phone类的所有信息。

下面是创建对象并输出所有信息的示例：

public class Main {
    public static void main(String[] args) {
        Phone myPhone = new Phone("Apple", "White", 5000);
        System.out.println(myPhone);
        myPhone.call("123456789");
        myPhone.sendMessage("Hello!", "123456789");
    }
}

输出结果为：

Phone [brand=Apple, color=White, price=5000]
Calling 123456789 with Apple phone
Sending message 'Hello!' to 123456789 with Apple phone