如何从Inner类访问阴影的外部类变量？

Question

This is not straight forward question. In my case the outer class variable and the inner class setter method's argument name is same. like:

class Problem {
    String s;
    int p;
    class Inner {
        String testMethod() {
         return  s = "Set from Inner";
        }
        void setP(int p)
        {
            p=p;  //it will do self assignment
        }
    }


}

now I cant initialize outer class instance variable p with this.p=p as it indicates the inner class. again I cannot do Problem.p=p; it gets an error. Now how can I assign outer p, keeping the inner Class method setP(int p) 's argument the same name p ?

Answer 1

这是你应该/应该做的：

Problem.this.p

Answer 2

用于引用外部类似的

Problem.this.p = p;

Answer 3

use this

class Problem {
String s;
int p;
class Inner {
    String testMethod() {
     return  s = "Set from Inner";
    }
    void setP(int p)
    {
        Problem.this.p=p;  //it will do assignment
    }
  }
}

Answer 4

class Problem {
String s;
int p;
class Inner {
    String testMethod() {
     return  s = "Set from Inner";
    }
    void setP(int p)
    {
        Problem.this.p=p;  //it will do assignment to p of outer class
    }
}
}