History of Idiom 195 > diff from v14 to v15
Edit summary for version 15 by programming-idioms.org:
[Java] Structure for sum
[Java] Structure for sum
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Version 14
2022-02-11, 14:11:21
Version 15
2022-02-11, 14:12:05
Idiom #195 Pass a two-dimensional array
Pass an array a of real numbers to the procedure (resp. function) foo. Output the size of the array, and the sum of all its elements when each element is multiplied with the array indices i and j (assuming they start from one).
Idiom #195 Pass a two-dimensional array
Pass an array a of real numbers to the procedure (resp. function) foo. Output the size of the array, and the sum of all its elements when each element is multiplied with the array indices i and j (assuming they start from one).
Variables
a,foo,i,jVariables
a,foo,i,jCode
public static void foo(int[][] a){
int sum = 0;
System.out.println("Array a has a size of " + a.length+" by " + a[0].length);
for (int i = 0; i<a.length; i++){
for (int j = 0; j<a[0].length; j++){
sum = sum + ((i+1)*(j+1)*a[i][j]);
}
}
System.out.println("The sum of all elements multiplied by their indices is: " + sum);
}
Code
public static void foo(int[][] a){
System.out.println("Array a has a size of " + a.length+" by " + a[0].length);
int sum = 0;
for (int i = 0; i<a.length; i++){
for (int j = 0; j<a[0].length; j++){
sum += ((i+1)*(j+1)*a[i][j]);
}
}
System.out.println("The sum of all elements multiplied by their indices is: " + sum);
}
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