In Java, some array types are covariant and/or contravariant. In the case of covariance, this means that if T is compatible to U, then T[] is also compatible to U[].

Write a Java program to search for a given number in a 2D array and print its position. Write a Java program to check if a matrix is symmetric (i.e., matrix is equal to its transpose). Write a Java ...

3. Vector mutation: now we can populate the vector with values we desire. For all vectors, we can populate vector values through vector writers (An example will be given in the next section). For ...