In Java matrices $[2$ dimensional arrays$]$ are stored as single$-$dimensioned array of pointers $($addresses$)$ to the rows of the matrix. Each row is treated as a single dimension array of objects. Develop the access formula for such a matrix, assume $0-$origin arrays, where es $=$ element size, ps $=$ pointer size, matrix is the name of the array, I is the row and j is the column to be accessed, and the base address of the array is p$.$ Given this scenario, what is the general formula for addr$($matrix$[$i$,$ j$])$