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Topic describes

Difficulty: Easy

Computes the sum of the digits of the given integer 12345.

knowledge

  • division
  • Take over operations

Their thinking

The key to solving the problem is how to get the digits in each place.

Example: Get the ones and tens place of 34

int a=34;
// Divide by 3
int b=34/10;
// return the remainder 4
int c=34%10;
Copy the code

Code implementation

/** * Computes the sum of the digits of the given integer 12345. * /
public class question_07 {
    public static void main(String args[]) {
        int y = 12345;
        int r = 0 ;
        int sum = 0;
        while(y! =0) {
            r = y % 10;
            sum += r;
            y = y / 10;
        }
        System.out.println("y = "+ sum); }}Copy the code

The output

conclusion

Mastery of mod and divisor operations, great role.

The last

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