public int innerProduct(int[] vectorA, int[] vectorB){
if (vectorA.length != vectorB.length) {
System.err.println("Arrays have different lengths!");
return Integer.MAX_VALUE;
}
int temp = 0;
for (int i = 0; i < vectorB.length; i++) {
temp += vectorA[i] * vectorB[i];
}
return temp;
}