大约有 13,000 项符合查询结果(耗时:0.0202秒) [XML]

https://stackoverflow.com/ques... 

How to remove leading zeros from alphanumeric text?

...for start of input rather than start of line). The 0* means zero or more 0 characters (you could use 0+ as well). The replaceFirst just replaces all those 0 characters at the start with nothing. And if, like Vadzim, your definition of leading zeros doesn't include turning "0" (or "000" or similar s...
https://stackoverflow.com/ques... 

Is It Possible to NSLog C Structs (Like CGRect or CGPoint)?

...e-C data item. It can hold any of the scalar types such as int, float, and char, as well as pointers, structures, and object ids. Example: CGPoint cgPoint = CGPointMake(10,30); NSLog(@"%@",[NSValue valueWithCGPoint:cgPoint]); OUTPUT : NSPoint: {10, 30} Hope it helps you. ...
https://stackoverflow.com/ques... 

How can I grep for a string that begins with a dash/hyphen?

... The dash is a special character in Bash as noted at http://tldp.org/LDP/abs/html/special-chars.html#DASHREF. So escaping this once just gets you past Bash, but Grep still has it's own meaning to dashes (by providing options). So you really need t...
https://stackoverflow.com/ques... 

Regex, every non-alphanumeric character except white space or colon

... - matches all the letters ^ - negates them all - so you get - non numeric chars, non spaces and non colons share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

split string only on first instance - java

I want to split a string by '=' charecter. But I want it to split on first instance only. How can I do that ? Here is a JavaScript example for '_' char but it doesn't work for me split string only on first instance of specified character ...
https://stackoverflow.com/ques... 

How to use `string.startsWith()` method ignoring the case?

... really will do a toUpperCase in a 1mb String just to compare 4-10 inicial characters? – Dyorgio Apr 7 '16 at 16:52 ...
https://stackoverflow.com/ques... 

The simplest way to comma-delimit a list?

.... The StringJoiner class. Example: // Util method for strings and other char sequences List<String> strs = Arrays.asList("1", "2", "3"); String listStr1 = String.join(",", strs); // For any type using streams and collectors List<Object> objs = Arrays.asList(1, 2, 3); String listStr2 ...
https://stackoverflow.com/ques... 

How do I remove all specific characters at the end of a string in PHP?

How do I remove the last character only if it's a period? 9 Answers 9 ...
https://stackoverflow.com/ques... 

How to check if an int is a null

... 0 long 0L float 0.0f double 0.0d char '\u0000' boolean false Objects have null as default value. String (or any object)--->null 1.) I need to check if the object is not null; Is the following expression correct; if (person == n...
https://stackoverflow.com/ques... 

Indexes of all occurrences of character in a string

...System.out.println(index); } [Note: if guess can be longer than a single character, then it is possible, by analyzing the guess string, to loop through word faster than the above loops do. The benchmark for such an approach is the Boyer-Moore algorithm. However, the conditions that would favor usi...