编辑代码

class Main {
	public static void main(String[] args) {
        //JSRUN引擎2.0，支持多达30种语言在线运行，全仿真在线交互输入输出。
		System.out.println("Hello world!   - java.jsrun.net ");
        dog a = new dog();
        dog b = new dog("sssss",6,"white",5);
        b.printdog();
        b.sleep(5);
        a.breed = "aaaa";
        a.size = 6;
        a.printdog();
        a.name("bbb");
        a.printdog();
	}
}
class dog
{
    String breed;
    int size;
    String color;
    double age;
    static double height = 6;
    public dog()
    {
         
    }
    public dog (String breeds,int sizes,String colors,int ages)
    {
        breed = breeds;
        size = sizes;
        color = colors;
        age = ages;
    }
    void printdog()
    {
        System.out.println(breed);
    }
    void eat()
    {
        int change = 1;
        size = size + change;
    }
    void sleep(double time)
    {
        age = age + time;
    }
    void name(String name)
    {
        breed = name;
    }
    
}