大约有 43,000 项符合查询结果（耗时：0.0339秒） [XML]
How can I pad a String in Java?
...
What if you need to lpad with other chars (not spaces) ? Is it still possible with String.format ? I am not able to make it work...
– Guido
Aug 11 '09 at 15:48
...
Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph.
...
I want to remove double quotes from a String
...r goal is to replace all double quotes).
Here's how it works:
['"] is a character class, matches both single and double quotes. you can replace this with " to only match double quotes.
+: one or more quotes, chars, as defined by the preceding char-class (optional)
g: the global flag. This tells J...
MySQL - How to select data by string length
...
You are looking for CHAR_LENGTH() to get the number of characters in a string.
For multi-byte charsets LENGTH() will give you the number of bytes the string occupies, while CHAR_LENGTH() will return the number of characters.
...
How to escape JSON string?
... edited Jun 6 '17 at 23:57
Richard Ev
47.6k5353 gold badges179179 silver badges271271 bronze badges
answered Jan 30 '14 at 11:40
...
SQL Developer is returning only the date, not the time. How do I fix this?
...
This will get you the hours, minutes and second. hey presto.
select
to_char(CREATION_TIME,'RRRR') year,
to_char(CREATION_TIME,'MM') MONTH,
to_char(CREATION_TIME,'DD') DAY,
to_char(CREATION_TIME,'HH:MM:SS') TIME,
sum(bytes) Bytes
from
v$datafile
group by
to_char(CREATION_TIME,'...
Removing trailing newline character from fgets() input
...
The slightly ugly way:
char *pos;
if ((pos=strchr(Name, '\n')) != NULL)
*pos = '\0';
else
/* input too long for buffer, flag error */
The slightly strange way:
strtok(Name, "\n");
Note that the strtok function doesn't work as expected ...
Finding all possible permutations of a given string in python
...nt to generate all permutations from that string, by changing the order of characters in it. For example, say:
24 Answers
...
Boolean Field in Oracle
...erability with JDBC's getBoolean() etc.) with a check constraint
a type of CHAR (because it uses less space than NUMBER).
Their example:
create table tbool (bool char check (bool in (0,1));
insert into tbool values(0);
insert into tbool values(1);`
...
C++ templates Turing-complete?
...;
template<int n>
struct State {
enum { value = n };
static char const * name;
};
template<int n>
char const* State<n>::name = "unnamed";
struct QAccept {
enum { value = -1 };
static char const* name;
};
struct QReject {
enum { value = -2 };
static char ...