Question

I’m a beginner in java and I want to know how LinkedList is used here.

public LinkedList<nameofclass> getsomething(String a, int L)

Here’s the code:

public LinkedList<Save> getBrightness( 
    String params, 
    Integer colors, 
    Integer[] BrightnessValue, 
    boolean clear) 
{ 
    ...
    LinkedList<Save> equal = new LinkedList<Save>(); 

Save is a class which is located outside I don’t understand this code

Answer 1

The method getBrightness is creating an instance of LinkedList that will contain instances of class Save. Presumably later in the code you will find a loop containing

Save s = new Save(...);
s.set...(...);  // maybe
...
equal.add(s);

which will create multiple instances of Save and add them to the list. At the end will be

return equal;

The linked list is being used as a container so that getBrightness can return several values.