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get string value from HashMap depending on key name
...et(myCode);
Here's a tutorial about maps, you may find it useful: http://java.sun.com/docs/books/tutorial/collections/interfaces/map.html.
Edit: you edited your question with the following:
I'm expecting to see a String, such as "ABC" or "DEF" as that is what I put in there initially, but if ...
How to add an image to a JPanel?
...e's how I do it (with a little more info on how to load an image):
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.JPanel...
Benefits of prototypal inheritance over classical?
So I finally stopped dragging my feet all these years and decided to learn JavaScript "properly". One of the most head-scratching elements of the languages design is it's implementation of inheritance. Having experience in Ruby, I was really happy to see closures and dynamic typing; but for the li...
slf4j: how to log formatted message, object array, exception
...ew Exception("something went wrong")});
will yield
one two three: a b c
java.lang.Exception: something went wrong
at Example.main(Example.java:13)
at java.lang.reflect.Method.invoke(Method.java:597)
at ...
The exact output will depend on the underlying framework (e.g. logback, log4j...
How to update a value, given a key in a hashmap?
Suppose we have a HashMap<String, Integer> in Java.
17 Answers
17
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What does -XX:MaxPermSize do?
...lly generate and load many classes; for example,
some implementations of JavaServer Pages (JSP) pages. These
applications may need a larger permanent generation to hold the
additional classes. If so, the maximum permanent generation size can
be increased with the command-line option -XX:MaxP...
Timer & TimerTask versus Thread + sleep in Java
...
From the Timer documentation:
Java 5.0 introduced the java.util.concurrent package and one of the
concurrency utilities therein is the ScheduledThreadPoolExecutor which
is a thread pool for repeatedly executing tasks at a given rate or
delay. It is ...
Disabling contextual LOB creation as createClob() method threw error
...
Which java version did you try this with? Intellij is unable to find this property.
– comiventor
Dec 6 '17 at 8:53
...
Develop Android app using C#
...Mono and dot42 are licensed products.
Personally, I would recommend using Java with the IntelliJ IDEA dev environment. I say this for 3 reasons:
There is so much Java code out there for Android already; do yourself a favour and don't re-invent the wheel.
IDEA is similar enough to Visual Studio as...
What are markers in Java Logging frameworks and what is a reason to use them?
...tps%3a%2f%2fstackoverflow.com%2fquestions%2f16813032%2fwhat-are-markers-in-java-logging-frameworks-and-what-is-a-reason-to-use-them%23new-answer', 'question_page');
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