Using javaserver face in java how can I code the add and multiply matrix method in bean class from matricesopeartions class and how I can I code the index xhtml with ui:repeat, add, multply and clear button. The two classes has getter and setters

public class MatricesOperations implements MatricesInterface$\{$

private Integer$[][]$ O;

private Integer$[][]$ P $//$

private Integer$[][]$ Q

@Override

public Integer$[][]$ addMatrices$($Integer$[][]$ m$1,$ Integer$[][]$ m$2)$ throws IllegalArgumentException $\{$

if $($m$1.$length $!=$ m$2.$length $||$ m$1[0].$length $!=$ m$2[0].$length$)\{$

throw new IllegalArgumentException$("$Matrices must have the same dimensions"$)$;$\}$

Integer$[][]$ result $=$ new Integer$[$m$1.$length$][$m$1[0].$length$]$;

for $($int i $=0$; i $<$ m$1.$length; i$++)\{$

for $($int j $=0$; j $<$ m$1[$i$].$length; j$++)\{$

result$[$i$][$j$]=$ m$1[$i$][$j$]+$ m$2[$i$][$j$]$;$\}\}$

return result;$\}$

@Override

public Integer$[][]$ multiplyMatrices$($Integer$[][]$ m$1,$ Integer$[][]$ m$2)$ throws IllegalArgumentException $\{$

if $($m$1[0].$length $!=$ m$2.$length$)\{$

throw new IllegalArgumentException$("$The number of columns in m$1$ must be equal to the number of rows in m$2")$;$\}$

int rowsM$1=$ m$1.$length;

int colsM$1=$ m$1[0].$length;

int colsM$2=$ m$2[0].$length;

Integer$[][]$ result $=$ new Integer$[$rowsM$1][$colsM$2]$;

for $($int i $=0$; i $<$ rowsM$1$; i$++)\{$

for $($int j $=0$; j $<$ colsM$2$; j$++)\{$

result$[$i$][$j$]=0$;

for $($int k $=0$; k $<$ colsM$1$; k$++)\{$

result$[$i$][$j$]+=$ m$1[$i$][$k$]*$ m$2[$k$][$j$]\}\}\}$

return result;$\}\}$

$=================================================================$

@Named$($value $=$ "calculateMatriceBean"$)$

@SessionScoped

public class CalculateMatriceBean implements Serializable $\{$

private Integer rowsW;

private Integer columnsX;

private Integer rowsY;

private Integer columnsZ;

private MatricesOperations matrices $=$ new MatricesOperations$()$;

public MatricesOperations getMatrices$()\{$

return matrices;$\}$

public void add$()$

code

public void multiply$()$

code