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多选题
Which statements about inheritance are true？（）
A
In Java programming language only allows single inheritance.
B
In Java programming language allows a class to implement only one interface.
C
In Java programming language a class cannot extend a class and implement a interface together.
D
In Java programming language single inheritance makes code more reliable.
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解析：
在java中一个类只能有一个直接父类，但是可以实现多个接口，在继承的同时可以实现接口，之所以取消多继承的原因是多继承使得代码产生很多问题,而使用单一继承则可以使代码更可靠。
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