英文: Is there a way to reuse a part of code to instantiate array-lists that hold different data types...
JPA抽象类继承与List<AbstractClass>
英文: JPA Abstract Inheritance with List<AbstractClass> 问题 我的代码: @MappedSuperclass public abstra...
Liskov替换原则如何适用于类似Object的类?
英文: How does Liskov's Substitution Principle work for classes like Object? 问题 简而言之,Liskov的替换原则指出...
Generics and inheritance in Java library used from Kotlin
英文: Generics and inheritance in Java library used from Kotlin 问题 I understand that you want a transl...
Why method with argument List<Object> can not accept a list of any type like List<A> as argument in java?
英文: Why method with argument List<Object> can not accept a list of any type like List<A>...
在Java中,静态数据成员会被继承吗?
英文: Is a static data member inherited in Java? 问题 从父类继承的静态变量会原样传递到子类,还是会创建一个新的变量? 例如,如果有一个位于 class A...
Java中使用ArrayList实现继承
英文: Inheritance in java using array list 问题 I'm using simple inheritance in java but i'm not...
hey can you tell me how does the output comes in the following code?
英文: hey can you tell me how does the output comes in the following code? 问题 我对这段代码的工作原理有点困惑,你能帮忙吗?我正...
为什么在子类对象调用方法时,“this”会指向父类,而不是子类?
英文: Why does "this" refer to the parent class although a child class object calls the meth...
在Java中,在函数内部实例化一个类。
英文: Instantiate a class inside a function in Java 问题 我正在尝试创建一个函数,该函数将一个2D数组填充满一些对象。我的函数如下: void func...
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