父類Animal

package?com.imooc;
public?class?Animal?{
	//父類中的成員變量	
	public?String?name;
	public?int?age;
	private?int?weight;
			
	public?void?eat()?{
	????System.out.println("吃東西");	
	}	
}

子類Dog

package?com.imooc;
public?class?Dog?extends?Animal?{

}

測(cè)試類Initial

package?com.imooc;
public?class?Initial?{	
????Dog?dog?=?new?Dog();
????dog.age?=?2;
????dog.name?=?"xiaotian";
????}

在測(cè)試類調(diào)用父類成員變量時(shí)報(bào)錯(cuò)

dog.age = 2;

dog.name = "xiaotian";

以上兩句報(bào)錯(cuò)

錯(cuò)誤紅線在age和name下