Questions tagged [strings]
A string is a sequence of characters. It is commonly used to represent text or a sequence of bytes. Use this tag along with the appropriate programming language being used.
2,655
questions
8
votes
1answer
1k views
Formatting a number
I'm writing out two numbers separated with a dash. The first number is padded with leading zeros until 6 digits, the second number, 4.
...
6
votes
3answers
6k views
Java string replace
I am new to Java and I am trying to learn about optimizing code to make it production ready. I have the following code below. I would like to know how I could optimize it. I thought by using a small ...
2
votes
2answers
3k views
Print all interleavings of two given strings
Given two strings str1 and str2, write a function that prints all
interleavings of the given two strings. You may assume that all
characters in both strings are different
Example:
...
10
votes
3answers
471 views
Creating submenus with buttons
I have a menu, where a user selects one out of 4, and another 2 or 4 options will appear. I used big buttons; a picturebox + label to create the buttons.
The 4 main buttons are fixed, but the 4 other ...
11
votes
2answers
7k views
Print all permutations with repetition of characters
Given a string of length n, print all permutation of the given string.
Repetition of characters is allowed. Print these permutations in
lexicographically sorted order
Examples:
Input: AB
...
3
votes
1answer
1k views
Decoding binary string message
I am trying to learn some Java on my own, and I am tackling some "programming challenge" problems to practice the little I have learnt so far.
Could anybody constructively critique this beginner's ...
8
votes
3answers
7k views
Reversing every word in a string
Examples:
char test1[] = " ";
char test2[] = " hello z";
char test3[] = "hello world ";
char test4[] = "x y z ";
Results:
...
5
votes
2answers
2k views
Splitting a string of random length
I am currently using this code, but I am pretty sure there is a better way of doing it:
...
7
votes
4answers
634 views
Improving and optimizing squeeze() function
I am currently reading The C Programming Language by Dennis Richie and Brian Kernighan, and I came to implement the function squeeze (s1, s2) as an exercise. ...
9
votes
1answer
7k views
Implement numbering scheme like A,B,C… AA,AB,… AAA…, similar to converting a number to radix26
I want to implement numbering scheme like Microsoft Word uses for numbering.
first one gets = A,next is B, next is C, .... then AA, then AB,....and so on.
as shown below
...
9
votes
2answers
356 views
Command-line utility to capitalize long words in a file
I have been developing a capitalizer in Python. This is actually a script that an end user will type at their terminal/command prompt. I have made this script to:
Taking the first argument as a file ...
5
votes
1answer
2k views
Parsing XML to create IList
Here's a class I created to parse XML to create an IList.
It seems to me that this is something that will be done a lot in general by a lot of different programs. Is there a more standard way of doing ...
5
votes
2answers
1k views
Title case name when first, middle and last are all upper or lower case
This code works, but I get the feeling that it could be shorter and simpler. Any ideas?
...
4
votes
2answers
11k views
9
votes
5answers
53k views
Count the number of occurrences of a word
I was selected for the third round of MS internships for third years. We were surprisingly asked a very easy question: “Make a program that counts the number of times the WORD "a" or "A" occurs”. I ...
6
votes
3answers
3k views
A safer way to cut a string
I want to get just the first line of a big string. Currently, here's how I do it:
...
1
vote
1answer
123 views
Reversi text board parsing to bitfield
This Python code parses string representations of Reversi boards and converts them into bit string suitable for use by a bitstring module: b = BitArray('0b110') or ...
3
votes
3answers
3k views
Calculating user birth information
Can you please check if I've written the code correctly?
The task was:
Calculate the user's month of birth as a a number, where January = 0 through to December = 11.
Take the string entered
Get ...
3
votes
3answers
339 views
Custom strcat() with different arguments
I am teaching myself C, and feel like I am just starting to get the hang of pointers and arrays (I come from Python, where everything is magic). I'm looking for reviews, especially if I'm doing ...
2
votes
2answers
2k views
Creating a dictionary of all prefixes of a string in Python
a=raw_input()
prefix_dict = {}
for j in xrange(1,len(a)+1):
prefix = a[:j]
prefix_dict[prefix] = len(prefix)
print prefix_dict
Is there any possibility of ...
2
votes
3answers
150 views
How to re-factor a common String comparison
Code below is scattered all over the code base :
if (StringUtils.contains(manager.getName, "custom")){
}
It just checks if an object attribute contains a ...
3
votes
4answers
11k views
14
votes
3answers
5k views
Constant time string comparision in PHP to prevent timing attacks
I've been advised that when checking the password hash for a user I should use a string comparison function that always takes the same amount of time, to avoid timing attacks.
So I wrote this:
...
8
votes
3answers
6k views
Approximate String Matching Interview Question
I was working on the challenge Save Humanity from Interviewstreet for a while then gave up, solved a few other challenges, and have come back to it again.
The code below generates the correct ...
10
votes
3answers
16k views
Java Date formatter
The (real life) problem
Following my question on SO, I found out that printing a Java Date() in a custom format is quite tedious:
...
32
votes
2answers
107k views
Integer to Alphabet string (“A”, “B”, …“Z”, “AA”, “AB”…)
So this question is prompted by two things.
I found some code in our source control doing this sort of things.
These SO questions:
https://stackoverflow.com/questions/297213/translate-an-index-into-...
4
votes
3answers
377 views
Simple text file I/O for book data
I wanted to learn how to work with file I/O properly and found an assignment in my college papers and decided to write it:
...
2
votes
1answer
2k views
Pattern Matching with Mismatch
I have been using a slightly modified Hamming Distance algorithm for approximate String Matching for patterns and wondering if there is something better out there. The t being the length of the text ...
1
vote
2answers
1k views
3
votes
3answers
4k views
String in ANSI C?
I'm trying declare a string in ANSI C and am not sure of the best way to do it.
...
2
votes
2answers
8k views
Comparing long lists of strings for the closest match
What's the fastest (quality is important too, but a little less important) way to compare two strings?
I'm looking for the most efficient way to compare two strings. Some of the strings I'm comparing ...
7
votes
3answers
22k views
Splitting a string into tokens in C
I am trying to improve my skill in C, and this time by getting away from strtok. The following code splits the input string into ...
3
votes
1answer
224 views
2
votes
1answer
137 views
Is this String concatenation creating extra String?
Using the eclipse formatting on a class with some @NamedQueries created concatenations.
While I have been doing this for years without paying attention I just ...
4
votes
3answers
445 views
Possible buffer overflow dangers in C log parsing program
After hours of working, I've finally finished my first C log parsing program! (previously was a bash script, now it is C).
Although I think I've gotten most everything, I was just wondering if you ...
4
votes
2answers
18k views
Determining length of a char* string in C++
I was looking to do this with sizeof() and I just gave up. As minimal as I can make it, I was wondering if there was a less crude way of doing the ...
11
votes
5answers
46k views
Checking whether a string is a valid number
I'm developing a Java Helper Library which has useful methods developers don't want to type out over and over. I'm trying to think of the best way of checking whether a string is a valid number.
I've ...
2
votes
4answers
7k views
A couple of basic string parsing functions
I have an app that does a fair bit of text-parsing based on free-form user inputs. In this, I run searches on the whole string, and then on the last value of the string separate from the rest of the ...
1
vote
2answers
4k views
Find two equal substrings in a string
I have various strings that contain codes, e.g. like this:
"file = new JarFile(new File()" + "\nSystem.out.println(file"
but also
...
0
votes
1answer
5k views
Manipulate XML files in c#
I just finished my working code, but still want to improve it.
I want to transform this input:
...
24
votes
9answers
36k views
Most efficient way in C++ to strip strings
If I want to strip a string completely of its whitespaces, punctuation and numbers (i.e. anything that is not A-Z, a-z), what is the most efficient way of doing it in C++?
I tried this:
...
5
votes
4answers
10k views
Build a sentence from tokens / words in a String-Array
I'm facing an interesting issue at the moment:
My Situation:
I'm having (in Java) String-Arrays like the following (more complicated, of course). Each String-Array represents one sentence (I cant ...
2
votes
1answer
141 views
Removing text after `:`, `:` included
I need to remove last text after : in my String and : too. I have tried this. Please review. If there is a better way to do, ...
3
votes
3answers
14k views
Splitting a string into words or double-quoted substrings
For various reasons, I'm parsing a string, this code will explain what I'm after:
...
3
votes
1answer
1k views
Balanced delimiter method
I was trying to solve the following Programming Praxis problem:
Write a function that takes a string and determines if the delimiters
in the string are balanced. The pairs of delimiters are (), []...
6
votes
1answer
15k views
Returning index of nth occurrence of a substring
I've built a JavaScript function returning the index of the nth occurrence of a substring in a string.
...
4
votes
2answers
69k views
Formatting a datetime string in the YYYYMMDD format
I'm working with some strange APIs that requires the dates to be sent in the YYYYMMDD format.
I was thinking of doing something like this:
...
1
vote
1answer
4k views
String format function
string Format(string format_string, T1 p1, T2 p2, ..., TN pn)
The Format() function takes a copy of ...
asked Mar 19 '12 at 21:37
user1131146 account abandoned
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2
votes
1answer
1k views
Deleting everything between two quotes in a string
Is this the easiest way to delete everything between and including the two first quotes (if present) in an std::wstring?
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7
votes
2answers
12k views
Edit Distance Between Two Strings
...
asked Mar 18 '12 at 21:24
user1131146 account abandoned
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