泛型的使用：
public class Test {
public static void main(String[] args) {
DoWork<Person> doWork = new DoWork<>();
doWork.doSth(new Person());
DoEat<Man> doEat = new DoEat<>();
doEat.doSth(new Man());
}
// 普通类
public static class Person {
}
// 继承上一个普通类
public static class Man extends Person {
}
// 接受泛型的类
public static class DoWork<T> {
public void doSth(T obj) {
}
}
// 泛型的继承
public static class DoEat<T extends Person> {
public void doSth(T obj) {
}
}
}
时间： 2024-10-12 17:13:31