validation for letters | C# Online Compiler

validation for letters by Coding_Air

Imports System
				
Public Module Module1
	Public Sub Main()
	
		dim op as char	
		DO 
	
			console.WriteLine("Enter (a)dd (s)ubtract (m)ultiply (d)ivide")
			op = console.readline()
			
		loop until op = "a" or op = "s" or op = "m" or op = "d" 
		
		console.writeline("at least you listen")		
		
		
	End Sub
End Module

'psudocode
'INTEGER : number
'
'REPEAT 
'	INPUT "enternumber from 1-4" , number
'UNTIL number >= 1 AND number <= 4
'
'OUTPUT : well listened

​x
 
Imports System
                
Public Module Module1
    Public Sub Main()
    
        dim op as char  
        DO 
    
            console.WriteLine("Enter (a)dd (s)ubtract (m)ultiply (d)ivide")
            op = console.readline()
            
        loop until op = "a" or op = "s" or op = "m" or op = "d" 
        
        console.writeline("at least you listen")        
        
        
    End Sub
End Module
​
'psudocode
'INTEGER : number
'
'REPEAT 
'   INPUT "enternumber from 1-4" , number
'UNTIL number >= 1 AND number <= 4
'
'OUTPUT : well listened 

Trigger fires at 08/20/2023 12:00:00 +00:00
Trigger fires at 08/21/2023 12:00:00 +00:00
Trigger fires at 08/22/2023 12:00:00 +00:00

Executing Default at 06/16/2025 14:50:39
Default Executed 1 job(s).

WithMisfireHandlingInstructionDoNothing Executed 0 job(s).

Executing WithMisfireHandlingInstructionIgnoreMisfires at 06/16/2025 14:50:41
Executing WithMisfireHandlingInstructionIgnoreMisfires at 06/16/2025 14:50:41
Executing WithMisfireHandlingInstructionIgnoreMisfires at 06/16/2025 14:50:41
WithMisfireHandlingInstructionIgnoreMisfires Executed 3 job(s).

Executing WithMisfireHandlingInstructionFireAndProceed at 06/16/2025 14:50:42
WithMisfireHandlingInstructionFireAndProceed Executed 1 job(s).

Cached Result
Last Run:	9:50:39 pm
Compile:	0.029s
Execute:	4.29s
Memory:	27.70Mb
CPU:	4.319s

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