java如何定义泛型类引用的变量以将类传递给方法

Question

获取java中定义genric类型变量的genric时出错

用genric类型定义变量

带有泛型、普通、主类的示例

//Generic Class
public class A <T> {
    T t;

    //getter setter
}

//Normal class
public class B {
    //Some variables
}

//Main Class
public class C {
    public static void main(String[] args) {
        //Fine with normal class
        doSomeOpration(B.class);

        //Call doSomeOpration with genric class
        doSomeOpration(A<B>.class); //getting error not resolved A<B> generic type
    }

    public <T> static void doSomeOpration(Class<T> clazz) {
        //Do Some opration with clazz
    }
}

Answer 1

我建议你看看下面的帖子

What is the concept of erasure in generics in Java?

TL；DR：由于类型擦除，您不能使用T.class或A.class