创建对象并初始化

/**
 * Created by Administrator on 2018/10/31.
 */
public class zhu {
    public static void main(String[] args){
        lei car1=new lei("红色",6);//创建对象并初始化，给参数赋值
        car1.color="白色";
        car1.boud ="焚天";
        car1.count=7;
        car1.weight =4.56f;
        System.out.println(car1.color);
        System.out.println(car1.xianzheng+"吨");

public class lei {
   String color;
   int count;
   String boud;
   float weight;
   float xianzheng=10.43f;
   public lei(String myColor,int myCount){
      color=myColor;
      count=myCount;
   }
}

 

        People p1=new People(20,"张三");
        System.out.println(p1.age);
        System.out.println(p1.name );
        System.out.println(car1.color );
        System.out.println(car1.count  );//类对象名，成员变量

    }
}

public class People {
    int age;
    String name;
    public People(int myAge,String myName){
        age=myAge;
        name=myName;
    }
}