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What is the purpose of fork()?
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fork() is how you create new processes in Unix. When you call fork, you're creating a copy of your own process that has its own address space. This allows multiple tasks to run independently of one another as though they each had the full memory of...
Making a mocked method return an argument that was passed to it
...= mock(Application.class);
when(mock.myFunction(anyString())).thenAnswer(new Answer<String>() {
@Override
public String answer(InvocationOnMock invocation) throws Throwable {
Object[] args = invocation.getArguments();
return (String) args[0];
}
});
assertEquals("...
How do I change the background color of the ActionBar of an ActionBarActivity using XML?
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Try this
ActionBar bar = getActionBar();
bar.setBackgroundDrawable(new ColorDrawable("COLOR"));
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How does java do modulus calculations with negative numbers?
...ng? Because in Java -13 % 64 is supposed to evaluate to -13 but I get 51 .
14 Answers
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Difference between “read commited” and “repeatable read”
...ition to everything repeatable read guarantees, it also guarantees that no new data can be seen by a subsequent read.
Say you have a table T with a column C with one row in it, say it has the value '1'. And consider you have a simple task like the following:
BEGIN TRANSACTION;
SELECT * FROM T;
WAI...
High Quality Image Scaling Library [closed]
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/// </summary>
private static object encodersLock = new object();
/// <summary>
/// A quick lookup for getting image encoders
/// </summary>
public static Dictionary<string, ImageCodecInfo> Encoders
{
//get...
Find the division remainder of a number
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From Python 3.7, there is a new math.remainder() function:
from math import remainder
print(remainder(26,7))
Output:
-2.0 # not 5
Note, as above, it's not the same as %.
Quoting the documentation:
math.remainder(x, y)
Return the IEEE 754-style remai...
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
...ld F D Garcia: Thanks, it worked great. But, the program is now stopped by new one. object references an unsaved transient instance - save the transient instance before flushing Do you aware of this error. If not just leave it. I am searching.
– user405398
Sep ...
How to handle many-to-many relationships in a RESTful API?
...res some consideration for cache atomicity and invalidation. If you POST a new entity to /teams/3/players/ that list will be invalidated, but you don't want the alternate URL /players/5/teams/ to remain cached. Yes, different caches will have copies of each list with different ages, and there's not ...
Why does integer overflow on x86 with GCC cause an infinite loop?
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Is there a warning option that attempts to notice accidental infinite loops?
– Jeff Burdges
Nov 6 '11 at 20:36
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