SumLimit.java

 /* Given 2 non-negative ints, a and b, return their sum, so long as the sum
 *  has the same number of digits as a. If the sum has more digits than a,
 *  just return a without b.
 */
package TypesOfSum;
//-------import scanner class-----
import java.util.Scanner;

//--------created SumLimit class ----
public class SumLimit {
    //--------created sumLimit method--------
    static public int sumLimit(int a, int b) {
    int sum = a + b;
    //--------------converted a int  to String and calculate length of a string------
    int aLength = String.valueOf(a).length();
    //--------------converted sum int  to String and calculate length of sum string------
    int sumLength = String.valueOf(sum).length();

    if(sumLength == aLength)
        return sum;

    return a;
}


    public static void main(String[] args) {
    //--------calling input objects---------
    Scanner s=new Scanner(System.in);
    System.out.println("Please,Enter Two number:");
    int n=s.nextInt();
    int m=s.nextInt();
    //--------calling sumLimit method------
    int sum=sumLimit(n,m);
    System.out.println(sum);
    }

}