例如:

public class Example {

    public static void main(String...args) {
        new C();
    }

    public static class A {
        public A() {
            System.out.println("A");
        }
    }
    public static class B extends A {
        public B() {
            System.out.println("B");
        }
    }
    public static class C extends B {
        public C() {
            System.out.println("C");
        }
    }
}

另请注意，这可能不会打印出您所期望的内容.它实际上会打印:

Also note that this might not print what you would expect. It would actually print:

A
B
C

为什么?构造函数总是链接到超类.

Why? Constructors are always chained to the super class.