CODEWITHSUNDEEP
java
shanky singh
shanky singh

Reputation: 1141

How to store a result of and array and evaluate a sum

I have an array like this. 

int p[] = new int[n];

which is actually like this. 

//p[2,3,4,5,6];

Now I am multiplying each elemnt by 10 and want to store that value and letter wamt sum of that. my for loop.

int res ;
for(int i=0; i<n ;i++){
    res = p[i]* 10;
}

Now my question is in second iteration result is loosing the previous hold value. how to fix that.

Upvotes: 0

Views: 57

Answers (3)

A.YULGHUN
A.YULGHUN

Reputation: 11

int res=0; //initializing res with 0
for(int j=0;j<n;j++){
res=res+p[j]*10;
}

Upvotes: 1

Debanik Dawn
Debanik Dawn

Reputation: 799

With each iteration your res variable is being overwritten with a new value. Try this:

int res=0; //initializing this to 0 is important!
for(int i=0; i<n ;i++){
    res += p[i]* 10; //increment res by the 10 times p[i] 
}

Upvotes: 1

GuyL
GuyL

Reputation: 36

well there are two ways: way 1: make an array of results and have each block of the array save all the results, but this way is only for a case in which you need to use the single values later. way 2: in this case the way you should go with is to write this line of code inside the for loop:

res += p[i]* 10;

and return or print (whatever you need) res

Upvotes: 1

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