public class SelectionSwitch $\{$

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

Scanner sc $=$ new Scanner$($

System.in$)$;

System.out.println$("$Enter an expression: $")$;

double $v1=$ sc$.$nextDouble $()$ ;

char op $=$ sc$.$ next$()*charAt()$;

double v$2=$ sc$.$nextDouble $()$ ;

System.out.println$("$Your expression is: $"+$ v$1+""+$ op $+""+$ v$2)$;

switch$($op$)\{$

case $\text{'}+\text{'}$ :

System, out.println$($v$1+"+"+v2+=+(v1+v2)$;

break;

case $\text{'}-\text{'}$ :

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

break;

case $\text{'}**\text{'}$ :

System.out.println$($v$1+"*+v2+=+(v1**v2)$;

break;

case $\text{'}\frac{?}{?}\text{'}$ :

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

break;

default:

System.out.println$("$Invalid operation!"$)$;

$\}$

$\}.$

$\}$