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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...
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 go about formatting 1200 to 1.2k in java
I'd like to format following numbers into the numbers next to them with java:
23 Answers
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Use of class definitions inside a method in Java
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Any idea in which version of Java local classes where introduced?
– Sled
Nov 6 '14 at 17:32
1
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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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How can I concatenate two arrays in Java?
I need to concatenate two String arrays in Java.
61 Answers
61
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
1...
Sockets: Discover port availability using Java
...rammatically determine the availability of a port in a given machine using Java?
10 Answers
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JSON Array iteration in Android/Java
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If you're using the JSON.org Java implementation, which is open source, you can just make JSONArray implement the Iterable interface and add the following method to the class:
@Override
public Iterator iterator() {
return this.myArrayList.iterator()...