java

1. 创建 Phone 类

package class_object;

public class Phone {

    String brand;
    String color;
    double price;
    
    void call(String who){
        System.out.println("call "+who);
    }
    
    void sendMes(String message){
        System.out.println("send "+message);
    }
    
}

2.  创建 Phone 使用类

package class_object;
/**
 * 对象作为参数返回
 */
public class ClassParamReturn {

    public static void main(String[] args) {
        ClassParamReturn cc = new ClassParamReturn();
        
        Phone pp = cc.getPhone();
        System.out.println(pp);
        System.out.println(pp.brand);
        System.out.println(pp.price);
        System.out.println(pp.color);
    }
    
    Phone getPhone(){
        Phone p = new Phone();
        p.brand = "小米";
        p.price = 2999;
        p.color = "yellow";
        return p;
    }

}