How to convert a Binary String to a base 10 integer in Java
You need to specify the radix. There’s an overload of Integer#parseInt() which allows you to.
string
How to check if a string is a number?
Forget about ASCII code checks, use isdigit or isnumber (see man isnumber). The first function checks whether the character is 0–9, the second one also accepts various other number characters depending on the current locale. There may even be better functions to do the check – the important lesson is that this is a bit more complex than it looks, because … Read more
Return char[]/string from a function [duplicate]
Notice you’re not dynamically allocating the variable, which pretty much means the data inside str, in your function, will be lost by the end of the function. You should have: Then, when you call the function, the type of the variable that will receive the data must match that of the function return. So, you should … Read more
How can I remove punctuation from input text in Java?
This first removes all non-letter characters, folds to lowercase, then splits the input, doing all the work in a single line: Spaces are initially left in the input so the split will still work. By removing the rubbish characters before splitting, you avoid having to loop through the elements.
How to convert string to binary?
Something like this?
How to trim whitespace from a Bash variable?
A simple answer is: Xargs will do the trimming for you. It’s one command/program, no parameters, returns the trimmed string, easy as that! Note: this doesn’t remove all internal spaces so “foo bar” stays the same; it does NOT become “foobar”. However, multiple spaces will be condensed to single spaces, so “foo bar” will become “foo bar”. In addition it doesn’t remove … Read more
How do I create an array of strings in C?
If you don’t want to change the strings, then you could simply do When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings “blah” and “hmm”. If you do want to be able to change the actual string content, … Read more
Python: Get the first character of the first string in a list?
You almost had it right. The simplest way is but would also work. You want to end after the first character (character zero), not start after the first character (character zero), which is what the code in your question means.
How to delete a character from a string using Python
In Python, strings are immutable, so you have to create a new string. You have a few options of how to create the new string. If you want to remove the ‘M’ wherever it appears: If you want to remove the central character: You asked if strings end with a special character. No, you are … Read more
What does regular expression \\s*,\\s* do?
That regex “\\s*,\\s*” means: \s* any number of whitespace characters a comma \s* any number of whitespace characters which will split on commas and consume any spaces either side