Java Utililty Methods List Product

List of utility methods to do List Product

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Description

The list of methods to do List Product are organized into topic(s).

Method

DoubledotProduct(List v1, List v2)
dot Product 
if (v1.size() != v2.size())
    throw new IllegalArgumentException("Vectors must be of equal length.");
Double result = 0.0;
for (int i = 0; i < v1.size(); i++) {
    result = result + (v1.get(i) * v2.get(i));
return result;
NumberdotProductValue(List oper1, List oper2)
dot Product Value 
return adjuestedDotProductValue(oper1, 0.0, oper2, 0.0);
ListgetProductsFromString(List projects)
get Products From String 
return projects;
Listproduct(List> lists)
product 
List<String[]> results = new ArrayList<>();
product(results, lists, 0, new String[lists.size()]);
return results;
floatscalarProduct(List a, List b)
Scalar product of two vectors Be careful: Null entries are treated as 0! 
float sum = 0;
for (int i = 0; i < a.size() && i < b.size(); i++) {
    if (a.get(i) != null && b.get(i) != null) {
        sum += a.get(i) * b.get(i);
return sum;
ListscalerProduct(final List doubleList, final double scalerFactor)
scaler Product 
if (doubleList == null)
    throw new NullPointerException("The list is null. Aborting ...");
List<Double> outList = new ArrayList<>();
for (double d : doubleList) {
    outList.add(scalerFactor * d);
return outList;