Enter 2 numbers and find the sum of the intermediates

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Enter 2 numbers and find the sum of the intermediates

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#1 by (0 votes)

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I need to enter 2 numbers and add the intermediate numbers that are multiples of 3 including the 2 numbers entered, but it does not work with all the numbers, the if condition comes into conflict when it starts or ends in a multiple of 3 and does not I get a correct result

int a;
int b;
int i;
int suma;

System.out.println("Ingrese el primer valor");
a=s.nextInt();
System.out.println("Ingrese el segundo valor");
b=s.nextInt();

suma=0;
i=a;

do{
    r=i%3;
    if(r==0){
        suma=suma+i;
    }
    i=i+1;
}while(i<=b);    

System.out.println("El total es "+suma);

java netbeans

asked by Kevin Velasco 26.10.2017 в 00:12

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1 answer

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score 0 · Accepted Answer

I test your code with the cases:

First multiple number of 3, Second no:

int num1 = 3;
int num2 = 11;

I get 18 (3 + 6 + 9)

First number is not multiplo, Second if:

int num1 = 1;
int num2 = 9;

I get 18 (3 + 6 + 9)

The 2 numbers are multiples of 3:

int num1 = 3;
int num2 = 12;

I get 30 (3 + 6 + 9 +12)

The 2 numbers are not multiples:

int num1 = 1;
int num2 = 11;

I get 18 (3 + 6 + 9)

It does not take into account any number if it is not a multiple of 3, so your code goes well.

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