那个派生类中我加了一个main函数是不允许的吗?还是我少掉了哪一步?
求大佬指导~如果由个大概的修改意见就更棒了。
//类的继承
class BMW_Serial{
//成员数据
private int carLength,engCC,maxSpeed;
private String modelName;
//类方法
public void ShowData() {
carLength = 423;
engCC = 3000;
maxSpeed = 250;
System.out.println(modelName + "基本数据");
System.out.println("车身长度:" + carLength );
System.out.println("气缸cc数:" + engCC);
System.out.println("最高车速:" + maxSpeed);
}
//派生类
public class CH01_02 extends BMW_Serial {
//构造函数
public CH01_02(String name) {
modelName = name;
}
//主程序区块
public static void main(String args[]) {
//实现对象
CH01_02 BMW318 = new CH01_02("BMW 318i");
BMW318.ShowData();
}
}