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How to check if a string contains only digits in Java [duplicate]
... all be "true"
System.out.println("1".matches(regex));
System.out.println("12345".matches(regex));
System.out.println("123456789".matches(regex));
// negative test cases, should all be "false"
System.out.println("".matches(regex));
System.out.println("foo".matches(regex));
System.out.println("aa123...
Linux: copy and create destination dir if it does not exist
...
Mark Amery
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answered Jan 4 '12 at 6:09
Paul WhippPa...
What exactly is RESTful programming?
...hn&lname=Doe&age=25
The server responds:
200 OK
Location: /user/123
In the future, you can then retrieve the user information:
GET /user/123
The server responds:
200 OK
<fname>John</fname><lname>Doe</lname><age>25</age>
To modify the record (lna...
What is the difference between self::$bar and static::$bar in PHP?
...which may not be what you intend:
class Foo
{
protected static $bar = 1234;
}
class Bar extends Foo
{
protected static $bar = 4321;
}
When you call a method via static, you're invoking a feature called late static bindings (introduced in PHP 5.3).
In the above scenario, using self will ...
Is it worth using Python's re.compile?
...
dF.dF.
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5
...
Can I multiply strings in Java to repeat sequences? [duplicate]
...
Two ways comes to mind:
int i = 3;
String someNum = "123";
// Way 1:
char[] zeroes1 = new char[i];
Arrays.fill(zeroes1, '0');
String newNum1 = someNum + new String(zeroes1);
System.out.println(newNum1); // 123000
// Way 2:
String zeroes2 = String.format("%0" + i + "d", 0);
St...
Can I convert a C# string value to an escaped string literal
...
Does not work. If I have "abc\n123" (without quotes, 8 chars), I want "abc" + \n + "123" (7 chars). Instead it produces "abc" + "\\" + "\n123" (9 chars). Notice the slash was doubled and it still contains a string literal of "\n" as two characters, not t...
Comparing two byte arrays in .NET
...| LongPointers | 2147483591 | 249,412,064.286 ns | 1,079,409.5670 ns | 0.98 |
| Unrolled | 2147483591 | 246,329,091.667 ns | 852,021.7992 ns | 0.97 |
| PInvokeMemcmp | 2147483591 | 247,795,940.000 ns | 3,390,676.3644 ns | 0.98 |
I was surprised to see SpansEqual not come out on top for ...
How to send and retrieve parameters using $state.go toParams and $stateParams?
...
So also you should pass toParams as array like this:
params = { 'index': 123, 'anotherKey': 'This is a test' }
paramsArr = (val for key, val of params)
$state.go('view', paramsArr)
And you can access them via $stateParams as array like this:
app.controller('overviewController', function($scope,...
How do I check to see if a value is an integer in MySQL?
...NED ) // will return 0 if not numeric string.
for example
SELECT CAST('a123' AS UNSIGNED) // returns 0
SELECT CAST('123' AS UNSIGNED) // returns 123 i.e. > 0
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