matlab loop

I am new in Matlab so I have a simple question because I am trying to implement some algorithm in java.. In the following code:

 SECTIONS(:,kk) = dividefreqs(Y(ii:ii+window-1).*hanw,FS).';

What Y(ii:ii+window-1) stands for? From what I read this would be an iteration through an array Y using a loop like this:

for (int ii=0; ii<ii+window-1; ii++) but that would give me an infinite loop. Can anyboyd help me on that?
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You are dealing with MATLAB indexing operation. ii:ii+window-1 will return a vector of sequential integers starting from ii and ending at ii+windows-1,
So, if ii=3 and window =5, you will get vector 3 4 5 6 7.
If Y is a vector (probably a sound signal), you will get vector of values from Y corresponding to the index vector. In for-loop term it will be something like
for (int i=ii; i<=ii+windows-1; i++) { printf(Y(i)); }

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