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How do I get a substring of a string in Python?
...
>>> x = "Hello World!"
>>> x[2:]
'llo World!'
>>> x[:2]
'He'
>>> x[:-2]
'Hello Worl'
>>> x[-2:]
'd!'
>>> x[2:-2]
'llo Worl'
Python calls this concept "slicing" and it works on more than j...
How to change the text on the action bar
...straction.
For example:
=> Normal way,
getActionBar().setTitle("Hello world App");
getSupportActionBar().setTitle("Hello world App"); // provide compatibility to all the versions
=> Customizing Action Bar,
For example:
@Override
public void setActionBar(String heading) {
//...
convert string array to string
...
string[] test = new string[2];
test[0] = "Hello ";
test[1] = "World!";
string.Join("", test);
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How do I add a simple onClick event handler to a canvas element?
...
For completeness, why your attempts didn't work...
elem.onClick = alert("hello world"); // displays alert without clicking
This is assigning the return value of alert() to the onClick property of elem. It is immediately invoking the alert().
elem.onClick = alert('hello world'); // displays ale...
Illegal string offset Warning PHP
... string. string will not understand that. In code we can see the problem:
"hello"["hello"];
// PHP Warning: Illegal string offset 'hello' in php shell code on line 1
"hello"[0];
// No errors.
array("hello" => "val")["hello"];
// No errors. This is *probably* what you wanted.
In depth
Let's s...
Syntax for a single-line Bash infinite while loop
...n a single line, correctly punctuated.
$ while true
> do
> echo "hello"
> sleep 2
> done
hello
hello
hello
^C
$ <arrow up> while true; do echo "hello"; sleep 2; done
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Difference between “process.stdout.write” and “console.log” in node.js?
..., you can just write something in there, like this:
process.stdout.write("Hello World\n");
If you don't put the break line at the end you will get a weird character after your string, something like this:
process.stdout.write("Hello World"); //Hello World%
(I think that means something like ...
String replacement in java, similar to a velocity template
...o the pattern at the appropriate places.
Object[] params = new Object[]{"hello", "!"};
String msg = MessageFormat.format("{0} world {1}", params);
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How to extract numbers from a string in Python?
...'d use a regexp :
>>> import re
>>> re.findall(r'\d+', 'hello 42 I\'m a 32 string 30')
['42', '32', '30']
This would also match 42 from bla42bla. If you only want numbers delimited by word boundaries (space, period, comma), you can use \b :
>>> re.findall(r'\b\d+\b', '...
Combining “LIKE” and “IN” for SQL Server [duplicate]
... statements
SELECT * FROM table
WHERE column LIKE 'Text%' OR column LIKE 'Hello%' OR column LIKE 'That%'
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