char typically refers to a character data-type, representing letters of text.
char typically refers to a character data-type, representing letters of text as well as digits, punctuation marks, control characters, etc.
Questions tagged [char]
11976 questions
3585
votes
18 answers
Why is char[] preferred over String for passwords?
In Swing, the password field has a getPassword() (returns char[]) method instead of the usual getText() (returns String) method. Similarly, I have come across a suggestion not to use String to handle passwords.
Why does String pose a threat to…
Ahamed
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955
votes
8 answers
How to convert a std::string to const char* or char*
How can I convert an std::string to a char* or a const char*?
user37875
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869
votes
12 answers
How to convert a char to a String?
I have a char and I need a String. How do I convert from one to the other?
Landon Kuhn
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536
votes
14 answers
What is the difference between char s[] and char *s?
In C, one can use a string literal in a declaration like this:
char s[] = "hello";
or like this:
char *s = "hello";
So what is the difference? I want to know what actually happens in terms of storage duration, both at compile and run time.
user188276
498
votes
17 answers
What is an unsigned char?
In C/C++, what an unsigned char is used for? How is it different from a regular char?
Landon Kuhn
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438
votes
7 answers
.NET / C# - Convert char[] to string
What is the proper way to turn a char[] into a string?
The ToString() method from an array of characters doesn't do the trick.
BuddyJoe
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421
votes
15 answers
How to convert a char array back to a string?
I have a char array:
char[] a = {'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'};
My current solution is to do
String b = new String(a);
But surely there is a better way of doing this?
chutsu
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388
votes
18 answers
std::string to char*
I want to convert a std::string into a char* or char[] data type.
std::string str = "string";
char* chr = str;
Results in: “error: cannot convert ‘std::string’ to ‘char’ ...”.
What methods are there available to do this?
user1598585
364
votes
4 answers
How can I convert a character to a integer in Python, and viceversa?
I want to get, given a character, its ASCII value.
For example, for the character a, I want to get 97, and vice versa.
Manuel Araoz
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297
votes
11 answers
Delete last char of string
I am retrieving a lot of information in a list, linked to a database and I want to create a string of groups, for someone who is connected to the website.
I use this to test but this is not dynamic, so it is really bad:
string strgroupids = "6";
I…
Kiwimoisi
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283
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20 answers
Why is there no Char.Empty like String.Empty?
Is there a reason for this? I am asking because if you needed to use lots of empty chars then you get into the same situation as you would when you use lots of empty strings.
Edit: The reason for this usage was this:
myString.Replace ('c', '')
So…
Joan Venge
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279
votes
4 answers
How to convert a char array to a string?
Converting a C++ string to a char array is pretty straightorward using the c_str function of string and then doing strcpy. However, how to do the opposite?
I have a char array like: char arr[ ] = "This is a test"; to be converted back to:
string str…
RajSanpui
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233
votes
13 answers
Single quotes vs. double quotes in C or C++
When should I use single quotes and double quotes in C or C++ programming?
Vishwanath Dalvi
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232
votes
7 answers
Java: parse int value from a char
I just want to know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
String element = "el5";
String s;
s = ""+element.charAt(2);
int x =…
Noya
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217
votes
14 answers
How to convert/parse from String to char in java?
How do I parse a String value to a char type, in Java?
I know how to do it to int and double (for example Integer.parseInt("123")).
Is there a class for Strings and Chars?
Yokhen
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