class ClassA{
private String name;
private int price;
ClassA(String name, int price){
this.name = name;
this.price = price;
}
String getName(){ return this.name; }
int getPrice(){ return this.price; }

@Override
public String toString(){
return this.name;
}
}

//805と同じつもり
class SortA implements Comparator<ClassA>{
@Override
public int compare(ClassA o1,ClassA o2){
if(o1.getPrice() > o2.getPrice()){
return 1;
}else if(o1.getPrice() < o2.getPrice()){
return -1;
}else{
return 0;
}
}

}