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What does 'synchronized' mean?
...the same variables, objects and resources. This is not a trivial topic in Java, but here is a quote from Sun:
synchronized methods enable a simple
strategy for preventing thread
interference and memory consistency
errors: if an object is visible to
more than one thread, all reads or
w...
Difference of Maven JAXB plugins
...com/highsource/maven-jaxb2-plugin)
the maven-jaxb-plugin (https://jaxb.dev.java.net/jaxb-maven2-plugin/)
the jaxb2-maven-plugin (https://github.com/mojohaus/jaxb2-maven-plugin)
Based on the comments of this thread, I've always used the maven-jaxb2-plugin (i.e. plugin #1):
Concerning the
org....
How to convert/parse from String to char in java?
How do I parse a String value to a char type, in Java?
14 Answers
14
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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...
How to use wait and notify in Java without IllegalMonitorStateException?
...
While using the wait and notify or notifyAll methods in Java the following things must be remembered:
Use notifyAll instead of notify if you expect that more than one thread will be waiting for a lock.
The wait and notify methods must be called in a synchronized context. See t...
Use of class definitions inside a method in Java
...
Any idea in which version of Java local classes where introduced?
– Sled
Nov 6 '14 at 17:32
1
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Java: Getting a substring from a string starting after a particular character
...
This can also get the filename
import java.nio.file.Paths;
import java.nio.file.Path;
Path path = Paths.get("/abc/def/ghfj.doc");
System.out.println(path.getFileName().toString());
Will print ghfj.doc
...
How can I concatenate two arrays in Java?
I need to concatenate two String arrays in Java.
61 Answers
61
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How can I generate a list or array of sequential integers in Java?
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With Java 8 it is so simple so it doesn't even need separate method anymore:
List<Integer> range = IntStream.rangeClosed(start, end)
.boxed().collect(Collectors.toList());
...
What is the difference between & and && in Java?
I always thought that && operator in Java is used for verifying whether both its boolean operands are true , and the & operator is used to do Bit-wise operations on two integer types.
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