Hello. I have a container class that holds an array 'arr' to store instances of the item class. The item class has to member variables called variable1 and variable2.
classdef container
properties
arr;
end
methods
function this = container(n)
this.arr = item.empty(n,0);
for i = 1:n
this.arr(i) = item(4);
end
end
end
end
classdef item
properties
value1;
value2;
end
methods
function this = item(v)
this.value1 = v;
end
function setValue2(this, v)
this.value2 = v;
end
end
end
clear all;
c = container(2);
c.arr(1).setValue2(9);
c.arr(1).value1
c.arr(1).value2
Wenn I run the last part I get this result:
ans = 4
ans = []
So value1 is set correctly in the Constructor, whereas value2 is set via a seperate function called setValue2. When I debug I can see that setValue2(9) sets value2 to 9 but when I leave the function value2 becomes an empty double again.
What am I doing wrong? Why doesnt Matlab keep the value? Do I use item.empty() the wrongt way? I didn't find any other option to declare an empty array of type 'item'.
Tanks you for every answer.
