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Static fields on a null reference in Java
static members ( static fields or static methods) in Java are associated with their respective class rather than the objects of this class. The following code attempts to access a static field on a null reference.
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Converting between java.time.LocalDateTime and java.util.Date
Java 8 has a completely new API for date and time. One of the most useful classes in this API is LocalDateTime , for holding a timezone-independent date-with-time value.
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Read logcat programmatically within application
...roid.com/studio/command-line/logcat.html
import android.util.Log;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import java.util.Stack;
/**
* Create...
Java 8 functional interface with no arguments and no return value
What is the Java 8 functional interface for a method that takes nothing and returns nothing?
3 Answers
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Java: splitting a comma-separated string but ignoring commas in quotes
... -1 to the split method param: line.split(regex, -1). See: docs.oracle.com/javase/6/docs/api/java/lang/…
– Bart Kiers
Apr 23 '14 at 14:55
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Is there a difference between single and double quotes in Java?
Is there a difference between single and double quotes in Java?
4 Answers
4
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How to declare or mark a Java method as deprecated?
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Use @Deprecated on method. Don't forget about clarifying javadoc field:
/**
* Does some thing in old style.
*
* @deprecated use {@link #new()} instead.
*/
@Deprecated
public void old() {
// ...
}
sh...
Java: function for arrays like PHP's join()?
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Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello", "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which will jo...
Does python have an equivalent to Java Class.forName()?
...ment and create an object of the class named in that string in Python. In Java, I would use Class.forName().newInstance() . Is there an equivalent in Python?
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How to generate JAXB classes from XSD?
I'm a total newbie with XML. I'm doing a Java EE project REST implementation and we return a lot of XML. With this we decided to use JAXB. So far, we manually coded the Models for the XML.
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