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How to format strings in Java
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In addition to String.format, also take a look java.text.MessageFormat. The format less terse and a bit closer to the C# example you've provided and you can use it for parsing as well.
For example:
int someNumber = 42;
String someString = "foobar";
Object[] args = ...
Why would I use Scala/Lift over Java/Spring? [closed]
...n is a bit open but I have been looking at Scala/Lift as an alternative to Java/Spring and I wonder what are the real advantages that Scala/Lift has over it. From my perspective and experience, Java Annotations and Spring really minimizes the amount of coding that you have to do for an application. ...
How do I get whole and fractional parts from double in JSP/Java?
How do I get whole and fractional parts from double in JSP/Java ? If the value is 3.25 then I want to get fractional =.25 , whole = 3
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Synchronization vs Lock
java.util.concurrent API provides a class called as Lock , which would basically serialize the control in order to access the critical resource. It gives method such as park() and unpark() .
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How to format Joda-Time DateTime to only mm/dd/yyyy?
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Note that in JAVA SE 8 a new java.time (JSR-310) package was introduced. This replaces Joda time, Joda users are advised to migrate. For the JAVA SE ≥ 8 way of formatting date and time, see below.
Joda time
Create a DateTimeFormatter us...
Java: random long number in 0
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Starting from Java 7 (or Android API Level 21 = 5.0+) you could directly use ThreadLocalRandom.current().nextLong(n) (for 0 ≤ x < n) and ThreadLocalRandom.current().nextLong(m, n) (for m ≤ x < n). See @Alex's answer for detail.
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Spring Boot application as a Service
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What follows is the easiest way to install a Java application as system service in Linux.
Let's assume you are using systemd (which any modern distro nowadays does):
Firstly, create a service file in /etc/systemd/system named e.g. javaservice.service with this content...
Java: Calling a super method which calls an overridden method
...even achieve the desired effect using Reflection (see the documentation of java.lang.reflect.Method.invoke(Object, Object...)).
[EDIT] There still seems to be some confusion. Let me try a different explanation.
When you invoke foo(), you actually invoke this.foo(). Java simply lets you omit the th...
The simplest way to comma-delimit a list?
What is the clearest way to comma-delimit a list in Java?
30 Answers
30
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Get a list of resources from classpath directory
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Here is the code
Source: forums.devx.com/showthread.php?t=153784
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.regex.Pattern;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException...