I want a method that tells me the text length is same as Compared text

Tangara G

6y915Learn iOS Programming

Hello,

I need help to make sure this method will tell me the comparision is the same in length:

Here's what I have :

private bool Matched(string Target, string text){

return text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length);

}

Do correct me if there is a mistake.

I'd also like to know if I didn't put in the Length will it affect the evaluation ?

15 Replies

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Rajanikant Hawaldar6y ago
Accepted answer
what you want to return? please tell us clearly everything with descriptive.
+1
Tangara G6y ago
Hi Rajan,

My apologies but now I have a problem and I am not sure what is wrong with the way it is written:

public bool (string a, string b) {
if (!bool method) {
return false;
}
else if (bool method == true) && (a == b) {
return false;
}
else if (bool method -== true) && (!a == b){
return false;
}
else if(bool method == true) && (a.ToLower().Trim().Equals(Target.Trim()){
return true;
}
return true;
}

Is there anything wrong with this method cos I can't get the test right?
And I wonder if we can use while bool method == true and then put a break if it is false for both conditions to make the method more efficient?
What is your view on this?
+1
Rajanikant Hawaldar6y ago
@Tangara G, Yes you can,
private bool Match(String a, String b)
{
   if(bool method)
   {
        // write your code here
        return true;
   }
   else
   {
        // write your code here
        return false;
   }
}
+1
Tangara G6y ago
Hi Rajan,

Just to be clear,

I want something like
bool Match(String a, String b) {
if(bool method) //then carry out
and then follows by the String comparision in terms of length and also if it is the same word ignoring casing.
So the final end is true right for this case?
Will I need to put a return a false some where ?
cos the whole flow is that if everything matches including the bool method is confirmed to be true then it will return true ultimately.
If one par of it it will return false, it doesn't have to spell out explicity right?
+1
Rajanikant Hawaldar6y ago
You can call one or more methods inside method
+1
Tangara G6y ago
Hi Rajan,

Fogive me but I was really blurred when it comes to if else statement.
Now, I know that you can't have something that return true right away if there is other condition.
My next question is :
if I embed a bool method inside this existing method will it cause any problem ?
I mean should I use while or ?
private static bool Matched(string Target, string text)
put another bool method here to check if it passed before those other conditions
should I use while inside?
+1
Tangara G6y ago
Hi Rajanikant,

Can I know why the last part will return true or false?

If I removed all the conditional statement and only left with return say isTextMatched = text.ToLower().Trim().Equals(Target.ToLower().Trim());

Will it return true or false if is supposed to be true.

But, I read that bool default is false so I am really confused.
+1
Rajanikant Hawaldar6y ago
Hello Tangara G, modified jignesh code and still you can modify it as per your requirement.
private static bool Matched(string Target, string text)
{
           // use below as required.
           // IsNullOrEmpty : Checks null and empty
           // IsNullOrWhiteSpace : Checks null, empty and whitespace
           if (string.IsNullOrEmpty(Target)) // IsNullOrWhiteSpace
           {
               throw new ArgumentNullException(" '" + Target + "' is null or empty");
               //return false;
           }
           else if (string.IsNullOrEmpty(text))
           {
               throw new ArgumentNullException(" '" + text + "' is null or empty");
               //return false;
           }
           else if (string.IsNullOrEmpty(Target) && string.IsNullOrEmpty(text))
           {
               throw new ArgumentNullException(" '" + Target + "' and   '" + text + "' is null or empty");
               //return false;
           }
           else
           {
               // Created isTextMatched and isLengthMatched for code readability.
               // Trims text and checks text equality
               bool isTextMatched = text.ToLower().Trim().Equals(Target.ToLower().Trim());
               // Trims text and checks text length equality
               bool isLengthMatched = text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length);
               return isTextMatched && isLengthMatched; // this returns true / false.
           }
}
+1
Tangara G6y ago
ok. But, what if I want to throw in checking if the string is empty or none and it must not be empty or null into the mix ?

How do I write a method or function that contains all that ?
+1
Jignesh Kumar6y ago
Hi,

If you want to compare only string lenght then you method code is perfect and will give correct output.
+1
Nisha Regil6y ago
Please try this reference link. https://www.tutorialsteacher.com/articles/compare-strings-in-csharp. Hope this would be useful.
+1
Tangara G6y ago
Hi Jignesh,

I would like to clarify your 3rd point :
// bool check = Program.Matched("ABC", "xyz");
//This will return true because we are only comparing string length not both strings
What do you mean by not comparing both strings in terms of length?

I need the length to be the same, so do I need to add in the .Length ? and preferably by adding .Length inside the exisiting method...if it's possible.
+1
Tangara G6y ago
Hi Nisha,

It is not just the length I am comparing, it is also the entire text that I am comparing and also if there is spacing, then I got to trim it because I am comparing against a specific text that is varying in length and may changes in the future.

I hope the above gives you a more clearer picture what I am looking for in a method.
At this point, I am not sure without putting in the .Length it will simply just compares the no of characters in the string.
+1
Jignesh Kumar6y ago
Hi,

in above example you are comparing to string lenfth only so if you want to compare string then you should remove length. Lets check with length and response for two different strings.
private static bool Matched(string Target, string text)
        {
           return text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length);
        }
// bool check = Program.Matched("ABC", "abc");
//Above will return true

// bool check = Program.Matched("ABC", "abc     ");
//above will return true as we are using trim() method

// bool check = Program.Matched("ABC", "xyz");
//This will return true  because we are only comparing string length not both strings
Now lets check without .Length
private static bool Matched(string Target, string text)
        {
           return text.ToLower().Trim().Equals(Target.ToLower().Trim());
        }
// bool check = Program.Matched("ABC", "abc");
//Above will return true

// bool check = Program.Matched("ABC", "abc     ");
//above will return true as we are using trim() method

// bool check = Program.Matched("ABC", "xyz");
//This will return false because we are only comparing string not length of string
Hope it will help you to understand both usage.
+1
Nisha Regil6y ago
Please refer links below

https://stackoverflow.com/questions/42057956/comparing-string-lengths-in-c-sharp
https://docs.microsoft.com/en-us/dotnet/csharp/how-to/compare-strings

You will not need to convert to toLower() to check Length.
+1

I want a method that tells me the text length is same as Compared text

Hi Rajanikant,