有没有一种方法可以区分一个抽象变量？

def identify_type(variable):
    return type(variable).__name__

var1 = "Hello, World!"
var2 = 42
var3 = [1, 2, 3]

print(identify_type(var1))  # 输出: str
print(identify_type(var2))  # 输出: int
print(identify_type(var3))  # 输出: list

public class GenericClass<T> {
    private T value;

    public GenericClass(T value) {
        this.value = value;
    }

    public T getValue() {
        return value;
    }

    public static void main(String[] args) {
        GenericClass<String> stringInstance = new GenericClass<>("Hello");
        GenericClass<Integer> integerInstance = new GenericClass<>(123);

        System.out.println(stringInstance.getValue().getClass().getName()); // 输出: java.lang.String
        System.out.println(integerInstance.getValue().getClass().getName()); // 输出: java.lang.Integer
    }
}