我不知道如何在其他类中创建和使用其他类中的对象。例如,我希望从另一个类(Item)
创建Publisherpublic class Item {
private String title;
private String publisher;
private int price,year,quantity;
Item(String title,String publisher,int price,int year,int quantity){
//Constructor goes here
}
}
//this is the publisher class:
public class Publisher {
private String name,address,country,city;
Publisher(String name,String address,String country,String city){
this.setName(name);
this.setAddress(address);
this.setCountry(country);
this.setCity(city);
}
}
答案 0 :(得分:1)
你尝试了什么?这很简单:
public class Item {
....
void Test() {
Publsiher p = new Publisher("a","b","c","d");
//do some things
}
}
答案 1 :(得分:0)
public class Item{
public Item(){
Publisher p = new Publisher('Name','Address','Country','City');
}
}
在构造函数Item()中创建一个新的Publisher对象“p”,其中包含您选择的输入值('name','address,'country','city')。