Write the code for method toString$2$D that has $1$ parameter matrix$1$ which will be a $2$ D array of int; this method returns a String representation of the $2$Darray. This method will return the contents of the $2$ D array as a String, each row of data is separated by in$,$ and each data in the row is separated by $1$ blank$/$space$.$

public static string toString$2$D $($int$][]$ matrix$)$

Write the code for method toString$1$D that has $1$ parameter matrix $1$ which will be a $1$D array of int; this method returns a String representation of the $1$Darray. This method will return the contents of the $10$ array as a String, each data in the row is separated by $1$ blank$/$space$.$

public static String tostring$1$D $($int$]$ matrix$)$