JavaSE-15.3.4【泛型接口】

package day6.lesson3.p4;

/*
3.4 泛型接口

    格式：
        修饰符 interface 接口名<类型> { }

 */
public class GenericDemo {
    public static void main(String[] args) {
        Generic<String> g1 = new GenericImpl<>();
        g1.show("tom");

        Generic<Integer> g2 = new GenericImpl<>();
        g2.show(30);
    }
}

package day6.lesson3.p4;

public interface Generic<T> {
    void show(T t);
}

package day6.lesson3.p4;

public class GenericImpl<T> implements Generic<T>{
    @Override
    public void show(T t) {
        System.out.println(t);
    }
}