Open the Times Table App project. Use currentProject to create a project object from the currently loaded project.

matlab.project.example.timesTable
proj = currentProject;

Get the list of project files.

files = proj.Files;

Loop through the files. Get each file's extension by taking the last element returned by the fileparts function. If the file has the extension .m, attach the label "Utility".

for fileIndex = 1:numel(files)
   file = files(fileIndex);
   [~,~,fileExtension] = fileparts(file.Path);
   if strcmp(fileExtension,".m")
      addLabel(file,"Classification","Utility");
   end
end

Use the findLabel function to find all the files with the label "Utility" and add them to the array utilityFilesToReview.

utilityFilesToReview = {};
for jj=1:numel(files)
   thisFile = files(jj);   
   label = findLabel(thisFile,"Classification","Utility");
   if (~isempty(label))
      % This is a file labeled "Utility". Add to the 
      % list of utility files.
      utilityFilesToReview = [utilityFilesToReview; thisFile];
   end
end

Open the Times Table App project. Use currentProject to create a project object from the currently loaded project.

matlab.project.example.timesTable
proj = currentProject;

Get a file by name.

myfile = findFile(proj,"source/timesTableGame.m");

Get a label from that file by name.

label = findLabel(myfile,"Classification","Design");

label = 

  Label with properties:

            File: "C:\myProjects\examples\TimesTableApp\source\timesTableGame.m"
        DataType: 'none'
            Data: []
            Name: "Design"
    CategoryName: "Classification"

Examine the Labels property of the file to get an array of Label objects, one for each label attached to the file. Index into the Labels property to get the label definition attached to the particular file.

labels = myfile.Labels
labeldefinition = myfile.Labels(1)

Get a label from the label definition.

label = findLabel(myfile,labeldefinition);

Open the Times Table App project. Use currentProject to create a project object from the currently loaded project.

matlab.project.example.timesTable
proj = currentProject;

Get a category.

category = proj.Categories(1)

category = 

  Category with properties:

                Name: "Classification"
        SingleValued: 1
            DataType: "none"
    LabelDefinitions: [1×7 matlab.project.LabelDefinition]

Get a label definition from that category.

ld = findLabel(category,"Design")

ld = 

  LabelDefinition with properties:

            Name: "Design"
    CategoryName: "Classification"