大约有 9,000 项符合查询结果（耗时：0.0193秒） [XML]
Neo4j - Cypher vs Gremlin query language
...w. Neo4j team told us that implementing our algorithm directly against the Java API would be 100-200 times faster. We did so and got easily factor 60 out of it. As of now we have no single Cypher query in our system due to lack of confidence. Easy Cypher queries are easy to write in Java, complex qu...
Scanner vs. StringTokenizer vs. String.Split
I just learned about Java's Scanner class and now I'm wondering how it compares/competes with the StringTokenizer and String.Split. I know that the StringTokenizer and String.Split only work on Strings, so why would I want to use the Scanner for a String? Is Scanner just intended to be one-stop-shop...
Meaning of -
... there is CP1252, or ISO-8859-1, whereas Linux users tend to favour UTF-8. Java uses UTF-16 natively.
One sequence of byte values for a character in one encoding might stand for a completely different character in another encoding, or might even be invalid.
For example, in ISO 8859-1, â is repres...
Copy a stream to avoid “stream has already been operated upon or closed”
I'd like to duplicate a Java 8 stream so that I can deal with it twice. I can collect as a list and get new streams from that;
...
How to activate “Share” button in android app?
...ITY_NEW_TASK);
startActivity(intent)
}
} catch (e: java.lang.Exception) {
e.printStackTrace()
toast("Error")
}
}
share
|
improve this answer
|
...
Does Java SE 8 have Pairs or Tuples?
I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
...
Is it possible to set a custom font for entire of application?
...tared it gets an email when you do that. So just "star" it please.
import java.lang.reflect.Field;
import android.content.Context;
import android.graphics.Typeface;
public final class FontsOverride {
public static void setDefaultFont(Context context,
String staticTypefaceFieldName...
Meaning of Choreographer messages in Logcat [duplicate]
...ty to be considered "background" (AsyncTask's are "background" by default, java.lang.Thread is not)
Generating lots of garbage, causing the garbage collector to "stop the world" - including the main thread - while it cleans up
To actually determine the specific cause you'll need to profile your a...
Why is the Java main method static?
The method signature of a Java main() method is:
37 Answers
37
...
Getting hold of the outer class object from the inner class object
...ith the JDK I'm using.
EDIT: The name used (this$0) is actually valid in Java, although the JLS discourages its use:
The $ character should be used only in
mechanically generated source code or,
rarely, to access pre-existing names on
legacy systems.
...