创建extends泛型对象

  2. public static <T extends Animal> T create(Supplier<T> supplier) {
  3.     T t = supplier.get();
  4.     t.setName("Tom");
  5.     t.setColor("Black");
  6.     t.setAge(10);
  7.     return t;
  8. }
  10. @Data
  11. static class Animal {
  12.     private String name;
  13.     private String color;
  14.     private Integer age;
  15. }
  17. @Data
  18. @ToString(callSuper = true)
  19. static class Cat extends Animal {
  20.     private String hasBanner;
  21. }
  23. @Test
  24. public void testGeneric() {
  25.     Animal animal = create(Animal::new);
  26.     Cat cat = create(Cat::new);
  28.     System.out.println(animal);
  29.     System.out.println(cat);
  30. }