$/*$

In the following code fragments:

A$)$ Is the following code safe? Shortly explain your answer.

B$)$ Add the necessary missing Java code parts$/$statements $($write them in chronological order$).$

C$)$ Rewrite the resulting code in part $($A$)$ using try$-$catch with resource.

$*/$

import $-----------$;

import $-----------$;

class ConnectionServer$\{$

public static void main$($String$[]$ args$)\{$

int serverListenPortNum $=$ Integer.parseInt$($args$[0])$;

try$\{$

ServerSocket connectionSocket $=$ new ServerSocket$(-------------------------)$;

Socket dataSocket $=-------------------------$;

BufferedReader br $=$ new BufferedReader$($new

InputStreamReader$(---------------------------------------))$;

int num$1=$ Integer.parseInt$($br$.$readLine$())$;

int num$2=$ Integer.parseInt$($br$.$readLine$())$;

System.out.println$($num$1+"+"+$num$2+"="+($num$1+$num$2))$;

dataSocket. $-----------()$;

connectionSocket. $-----------()$;

$\}$

catch$(----------------------)\{$

$\}$

catch$(----------------------)\{$

$\}$

catch$($Exception e$)$

$\{$

e$.$printStackTrace$()$;

$\}$

$\}$

$\}$