java - 在Java中_not_调用父类(super class)构造函数的任何方法？

Question

如果我有课:

class A {
   public A() { }
}

还有一个

class B extends A {
   public B() { }
}

有没有办法让B.B() 不调用A.A()？

Answer 1

在 Java 中绝对没有办法做到这一点；它会破坏语言规范。

JLS 12 Execution / 12.5 Creation of New Class Instances

Just before a reference to the newly created object is returned as the result, the indicated constructor is processed to initialize the new object using the following procedure:

1. Assign the arguments for the constructor [...]
2. If this constructor begins with an explicit constructor invocation of another constructor in the same class (using this), then [...]
3. This constructor does not begin with an explicit constructor invocation of another constructor in the same class (using this). If this constructor is for a class other than Object, then this constructor will begin with an explicit or implicit invocation of a superclass constructor (using super).
4. Execute the instance initializers and instance variable initializers for this class [...]
5. Execute the rest of the body of this constructor [...]