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scheduleAtFixedRate vs scheduleWithFixedDelay
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If you read the Java Doc it will be clearer
ScheduledFuture scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit)
Creates and executes a periodic action that becomes enabled first after the given initial de...
Why does ConcurrentHashMap prevent null keys and values?
The JavaDoc of ConcurrentHashMap says this:
7 Answers
7
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What does @hide mean in the Android source code?
...ype is a collection of classes and methods that are marked with the @hide Javadoc attribute.
Starting from Android 9 (API level 28), Google introduces new restrictions on the use of non-SDK interfaces, whether directly, via reflection, or via JNI. These restrictions are applied whenever an app re...
How to add texture to fill colors in ggplot2
...a$Points6 <- c(49, 56, 63, 71, 78)
Example.Data$Points7 <- c(84, 91, 98, 6, 12)
Finally I added geom_jitters to the ggplot above using the new columns for positioning and re-using 'Points' to vary the size of the 'bubbles':
+geom_jitter(data=Example.Data,aes(x=Bubbles, y=Points, size=Points...
Commonly accepted best practices around code organization in JavaScript [closed]
As JavaScript frameworks like jQuery make client side web applications richer and more functional, I've started to notice one problem...
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What is a Manifest in Scala and when do you need it?
...Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
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Android : Check whether the phone is dual SIM
...able now from Android 5.1 onwards
Other possible option :
You can use Java reflection to get both IMEI numbers.
Using these IMEI numbers you can check whether the phone is a DUAL SIM or not.
Try following activity :
import android.app.Activity;
import android.os.Bundle;
import android.wid...
Adding up BigDecimals using Streams
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Java standard library already have functions for summing integers/doubles like Collectors.summingInt(), but misses them for BigDecimals. Instead of writing reduce(blah blah blah) that is hard to read it would be better to wri...
How to convert latitude or longitude to meters?
.../ formula to convert that reading to meters, which I can then implement in Java (J9)?
15 Answers
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Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
...ing on, it may be helpful to look at the history of the . token in C, C++, Java, C#, and Swift.
In C, a structure is nothing more than an aggregation of variables. Applying the . to a variable of structure type will access a variable stored within the structure. Pointers to objects do not hold ag...