一个关于子类继承父类的问题，求高手指教下菜鸟…

2011-09-29 04:53:01 202 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

高分影像批处理第三回——RPC文件与几何校正前言前面两章部分完成了图像的基本组织和大气校正，可是对于遥感影像地理相关数据，精确的地理坐标也是非常关键的。L1级数据，可惜，并没有帮我们处理地理坐标系统。无论是打开ENVI还是用gdal工具查看图像元数据，其坐标系统都是错误的或者说是未读入的。因此本章节来解决这个问题。阅读详情

public class New {
public class Vehicle {

private String color;
private String kind;
private int speed;

Vehicle(){
color = "NULL";
kind = "NULL";
speed = 0;
}

public void setSpeed( int speed1){
speed = speed1;
}

public void setColor(String color1){
color = color1;
}

public void setKind(String kind1){
kind = kind1;
}

public int getSpeed(){
return speed;
}

public String getColor(){
return color;
}

public String getKind(){
return kind;
}
}
public class Car extends Vehicle{

private int passengerNumber;

Car(){
super();
passengerNumber = 0;
};

public void setPassengerNumber(int passgerNumber){
this.passengerNumber = passengerNumber;
}

public int getPassengerNumber(){
return passengerNumber;
}
}

public static void main(String []args){
Car myCar = new Car();
myCar.setColor("Black");
myCar.setSpeed(200);
myCar.setKind("Big");
myCar.setPassengerNumber(4);
System.out.println(" My Car :");
System.out.println("Color: " + myCar.getColor());
System.out.println("Speed: " + myCar.getSpeed());
System.out.println("Kind : " + myCar.getKind() );
System.out.println("The number of the passgers: "+ myCar.getPassengerNumber());

}
}

编译时报错为 MAIN方法中 Car myCar = new Car(); 有错，Exception in thread "main" java.lang.Error: Unresolved compilation problem: No enclosing instance of type New is accessible. Must qualify the allocation with an enclosing instance of type New (e.g. x.new A() where x is an instance of New).at New.main(New.java:57)

自己猜想可能是子类继承父类时构造顺序引发的错误，具体还不清楚，求高手指点！非常感谢！

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