If you solve your problem, please adopt it. If you have any questions, please ask. Thank you!

Parcel? com . zyx . cn . Baidu _ test；

Import? Java . util . scanner；

/**

*? Write a function sum(i), sum the bits of the input shaping parameter i(i≥0), and return the sum result.

*? Test this function in the main () function, input the integer n(n∈) from the keyboard,

*? Then input n non-negative integers, and call the sum function for each non-negative integer to find the sum of digits.

*? Output the results to the screen.

*? @ Author? yltd

*/

Public? Class? SumShow？ {

Public? Static electricity Invalid? main(String[]？ args)？ {

Scanner? sc=？ New? Scanner (system. in);

System.out.println ("Please enter a number greater than or equal to 0 and less than or equal to 20");

int？ Me? = sc . nextint()；

Sum (1);

System.out.println ("Please enter a non-negative integer");

int？ Two? = sc . nextint()；

Sum (2);

}

Public? Static electricity int？ sum(int？ i){

int？ sum？ =0;

For what? (int？ j？ =? 0; ? j？ & lt=? Me; ? j++)？ {

sum+= j；

}

system . out . println(sum)；

Return? Sum;

}

} Please enter a number greater than or equal to 0 and less than or equal to 20.

10

55

Please enter a non-negative integer

20

2 10