Java Array with loop

Question

I need to create an array with 100 numbers  1-100  and then calculate how much it all will be  1 2 3 4    100   sum    I don t want to enter these numbers into the arrays manually  100 spots would take a while and cost more code   I m thinking something like using variable   till 100 and then calculate the sum of it all  Not sure how exactly it would be written   But it s in important that it s in arrays so I can also say later   How much is array 55  and I can could easily see it

User · Answer

If all you want to do is calculate the sum of 1 2 3    n then you could use     int sum    n    n   1     2

User · Answer

int   nums   new int 100    int sum   0      Fill it with numbers using a for-loop for  int i   0  i  lt  nums length  i             nums i    i   1      sum    n      System out println sum

User · Answer

The Array has declared without intializing the values and if you want to insert values by itterating the loop this code will work   Public Class Program    public static void main String args          Array Intialization  int my     new int 6     for int i 0 i lt  5 i          Storing array values in array my i   i     Printing array values  System out println my i

User · Answer

this is actually the summation of an arithmatic progression with common difference as 1  So this is a special case of sum of natural numbers  Its easy can be done with a single line of code   int i   100     Implement the fomrulae n  n 1  2 int sum    i  i 1   2  System out println sum

User · Answer

I m not sure what structure you want your resulting array in  but the following code will do what I think you re asking for   int sum   0  int   results   new int 100   for  int i   0  i  lt  100  i        sum     i 1     results i    sum      Gives you an array of the sum at each point in the loop  1  3  6  10

User · Answer

To populate the array   int   numbers   new int 100   for  int i   0  i  lt  100  i          numbers i    i 1      and then to sum it   int ans   0  for  int i   0  i  lt  numbers length  i          ans    numbers i       or in short  if you want the sum from 1 to n     n   n  1      2

User · Answer

Here s how      Create an array with room for 100 integers int   nums   new int 100       Fill it with numbers using a for-loop for  int i   0  i  lt  nums length  i        nums i    i   1       1 since we want 1-100 and not 0-99     Compute sum int sum   0  for  int n   nums      sum    n      Print the result  5050  System out println sum

User · Answer

int count   100  int total   0  int   numbers   new int count   for  int i 0  count gt i  i          numbers i    i 1      total    i 1       done

User · Answer

If your array of numbers always is starting with 1 and ending with X then you could use the following formula  sum   x    x 1    2  from 1 till 100 the sum would be 100   101   2   5050

[java] Java: Array with loop

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