Why is extend and Override not working? It says can not find symbol for dragon and for override it says does not implement from a supertype.

public abstract class Dragon t private int breathDamage: private String name: public Dragon name-"GenericDragon" breathDamage-10: public Dragon (int breathDamage, String name) t this.breathDamage : xiri.uVac: this. name : : ; public int getBreathDamage ) t return breathDamage: public String getNameO return name abstract boolean isFriendly public static void main (String[] args)