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Regular expression to match numbers with or without commas and decimals in text
...
EDIT: Since this has gotten a lot of views, let me start by giving everybody what they Googled for:
#ALL THESE REQUIRE THE WHOLE STRING TO BE A NUMBER
#For numbers embedded in sentences, see discussion below
#### NUMBERS AND DECIMALS ONLY ####
#No commas allowed
#Pass: (100...
How can I count the number of matches for a regex?
...ount();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
...
What does OSGi solve?
...s - The OSGi component model is a dynamic model. Bundles can be installed, started, stopped, updated, and uninstalled without bringing down the whole system. Many Java developers do not believe this can be done reliably and therefore initially do not use this in production. However, after using this...
Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
...I end up checking for null, just before the iteration of the for-each loop starts. Like this:
10 Answers
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Java: Getting a substring from a string starting after a particular character
I have a string:
9 Answers
9
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Getting started with F# [closed]
... your browser (Silverlight). (contains interactive tutorial walkthroughs)
Start by watching videos and presentations (BTW, An Introduction to Microsoft F# by Luca Bolognese is still one of the best presentations on the subject). Then read the following two must-read books:
Programming F#: A compr...
What is the pythonic way to avoid default parameters that are empty lists?
... inside).
But if you didn't intend to mutate the argument, just use it as starting point for a list, you can simply copy it:
def myFunc(starting_list = []):
starting_list = list(starting_list)
starting_list.append("a")
print starting_list
(or in this simple case just print starting_l...
How do I create and read a value from cookie?
...ion getCookie(c_name) {
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";", c_start);
if (c_end == -1) {
...
How to change Rails 3 server default port in develoment?
On my development machine, I use port 10524. So I start my server this way :
9 Answers
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Changing the “tick frequency” on x or y axis in matplotlib?
...ld use ax.get_xlim() to discover what limits Matplotlib has already set.
start, end = ax.get_xlim()
ax.xaxis.set_ticks(np.arange(start, end, stepsize))
The default tick formatter should do a decent job rounding the tick values to a sensible number of significant digits. However, if you wish to h...