vintage jewelry charm wholesale C#management system operation ...

israeli jewelry wholesale Class Program
{
static double stock = 0.0;
static void main (string [] args)
{
Console.writeline ("Welcome to PUBG virtual currency banking system") ;
string input = ();
While (! String.equals (input, "4")
{
switch (input)
{
case "" ":
add ();
break;
case" 2 ":
extRact ();
break;
case" 3 ":
Query ();
Break;
Default:
console.writeline ("Please enter the correct operation option!");
break;
}
input = ();
}
Console.writeline ("Welcome to use next time, goodbye!");
console.readkey ();
}
static void add () r {
double Money ;
Console.writeline ("Please enter the number of gold coins:");
string strmoney = console.readline ();
While (! Double.Tryparse (Out Money) || Money u003C= 0.0000 0.0 )
{
console.writeline ("The number of gold coins input is incorrect, please re -enter:");
strmoney = console.readline (); Money;
Console.writeline ("You have added {0} gold coins, successful operation!", Money);
}
static string "======================================================================================================================================================================================================================= Writeline ("2. Extract gold coin");
Console.writeline ("3. query balance");
Console.writ.writ eline ("4. Exit");
console.writeline ("============================= .Writeline ("Please select:");
Rturn console.readline ();
}
static void extract ()
{
double money; ("Please enter the quantity of gold coins:");
string strmoney = console.readline ();
While (! Double.Tryparse (Strmoney, Out Money) || Money u003C= 0.0) n { n { n { n R nConsole.writeline ("The number of gold coins input is incorrect, please re -enter:");
strmoney = console.readline ();
}
if (stock u003Cmony) n {
console.writeline ("" Your balance! ");
RTurn;
}
stock- = Money; , Successfully operate! ", Money);
}
static void query ()
{
Console.writeline (" Your gold coin balance is: {0}! ", Stock);
}
}