种级别的泛型

类级别的泛型

public class GenericTest{public static void main(String[] args) {GenericDao<String> dao = new GenericDao();dao.add("cc");}}class GenericDao<T> {//静态方法会报错,//public static void update(T name){//}public void update(T t){}public void add(T t){}public T getById(Integer Id){T t = null;return t;}}

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