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Can You Access?

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  • yashdeora98294
     + 0 comments

    Here Can You Access solution in Java - https://programmingoneonone.com/hackerrank-can-you-access-problem-solution-in-java.html

  • geekinthelead
     + 0 comments
     //Java 24
  Inner.Private myprivate = solution.new Inner().new Private();
 public boolean isPowerOfTwo(int x) {
              
                return x == Integer.highestOneBit(x) && x != 0;
                
            }
 ``

  • irongalactico001
     + 1 comment

    what is wrong with my solutions?

    import java.io.*;
import java.util.*;

public class Solution {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int num=sc.nextInt();
        int a=0;
        if((num>0)&&(num&(num-1))==0){
            System.out.printf("%d is power of %d",num,2);
        }
        else{System.out.printf("%d is not power of %d\n",num,2);
        System.out.print("An instance of class: Solution.Inner.Private has been created");
        }

        }
}

  • osamabinazam
     + 1 comment

    I came to the solution by adding the following lines to use Java reflection and access the private powerof2 method in Solution.Inner.Private:

    Solution.Inner inner = new Solution.Inner();
Solution.Inner.Private innerPrivate = inner.new Private();
o = innerPrivate;
Method method = innerPrivate.getClass().getDeclaredMethod("powerof2", int.class);
method.setAccessible(true); 
String result = (String) method.invoke(o, num); 
System.out.println(num + " is " + result);

    `

  • ing_urirmz
     + 0 comments
    o = new Inner().new Private();
String powerOf2 = ((Inner.Private)o).powerof2(num);
System.out.println(num + " is " + powerOf2);