我正在尝试实现具有比父类更多参数的类的构造函数,唯一的共同点是标题.当我尝试在Book类中实现构造函数时,它向我显示错误"隐式超级构造函数Item()未定义".
public class Book extends Item {
private String author = "";
private String ISBN = "";
private String publisher = "";
public Book(String theTitle, String theAuthor, String theIsbn, String thePublisher){
}
}
父类构造函数;
public abstract class Item {
private String title;
private int playingTime;
protected boolean gotIt;
private String comment;
public Item(String title, int playingTime, boolean gotIt, String comment) {
super();
this.title = title;
this.playingTime = playingTime;
this.gotIt = gotIt;
this.comment = comment;
}
提前致谢.