Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. Thus your code should put 1*1 + 2*2 + 3*3 +… + 49*49 + 50*50 into total. Use no variables other than k and total.

June 1, 2014 Matthew Maennche Java, Learn To Code 20680, Java 1
Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. Thus your code should put 1*1 + 2*2 + 3*3 +… + 49*49 + 50*50 into total. Use no variables other than k and total.

LANGUAGE: JAVA

CHALLENGE:

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. Thus your code should put 1*1 + 2*2 + 3*3 +… + 49*49 + 50*50 into total. Use no variables other than k and total.

SOLUTION:


k = 1;
total = 0;
while ( k <= 50 ){
   total = total + ( k * k );
   k = k + 1;
}

One comment

  • Phil says:
    December 10, 2016 at 2:47 pm

    This solution is accepted on mathlab HOWEVER
    this would leave you with the wrong answers if you print it.

    total = k*k
    total + (k+k) gives you 1 more than the answer.
    for exam 2^2 would equal 5 instead of 4.

    this is what i did to get the first 50 squared numbers.

    public class Whileegs {

    public static void main(String[] args) {

    int k=0;
    int total=0;
    while (k<50){

    total= (k*k);
    System.out.println(total);
    k++;

    }
    }
    }

    I love this site. thanks, this has been a lifesaver!

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