[英]How do I go about creating and then connecting to and querying a database in Java?
[英]How do I go about creating the method?
请为流派、导演、演员和评级创建不同的对象。 当您尝试向每个实体添加更多信息时,这将是最佳实践。
对每个属性使用访问修饰符“private”,并根据需要实现 get、set 方法。
使用 ArrayLists 而不是数组以避免在需要时调整大小。
import java.util.ArrayList;
import java.util.List;
public class Genre {
private int id;
private String name;
public Genre(int id, String name) {
this.id = id;
this.name = name;
}
}
public class Director {
private int id;
private String name;
public Director(int id, String name) {
this.id = id;
this.name = name;
}
}
public class Actor {
private int id;
private String name;
public Actor(int id, String name) {
this.id = id;
this.name = name;
}
}
public class Rating {
private int value;
private String name;
public Actor(int value, String name) {
this.value = value;
this.name = name;
}
}
public class Movie {
private int id;
private String name;
private String description;
private List<Genre> generes;
private List<Director> directors;
private List<Actor> actors;
private String language;
private String countryOfOrigin;
pulic Movie(int id, String name, String description, String language, String countryOfOrigin){
this.id = id;
// set other variables
this.actors = new ArrayList<Actor>();
// create other lists
}
public void addGenere(Genre genere){
this.generes.add(genere);
}
// implement other add methods to lists
}
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