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Ok.
I tried to return the value of the matrix after the product, but the result is always the same...

Here you are.
It returns a matrix which is the multiplication between two matrixes



public static int [][] prodotto(int t1[][],int t2[][]) {
//it is possible only if t1[0].length = t2.length...

m[][]=AlgoritmiMatrici.identita(2);-->it generates the 2x2 identity matrix
AlgoritmiMatrici.prodotto(m,m);-->is the result of the multiplication between m and m

This code should calculate the...