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Addition for BigDecimal
...need to do this:
BigDecimal result = test.add(new BigDecimal(30));
System.out.println(result);
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Return multiple values to a method caller
...be very very nice if instead of Item1, Item2 and so on one could use named output values. C# 7 possibly is going to provide that.
– Sнаđошƒаӽ
Sep 23 '16 at 8:53
2
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What's the difference between deadlock and livelock?
...aside to let
the other pass, but they end up
swaying from side to side without
making any progress because they both
repeatedly move the same way at the
same time.
Livelock is a risk with
some algorithms that detect and
recover from deadlock. If more than
one process takes action, the deadlock
detec...
Why can't overriding methods throw exceptions broader than the overridden method?
... of documentation if you want, but the compiler doesn't enforce anything about it.
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How to print color in console using System.out.println?
...r terminal supports it, you can use ANSI escape codes to use color in your output. It generally works for Unix shell prompts; however, it doesn't work for Windows Command Prompt (Although, it does work for Cygwin). For example, you could define constants like these for the colors:
public static fin...
Calling a Java method with no name
...
This:
static {
System.out.print("x ");
}
is a static initialization block, and is called when the class is loaded. You can have as many of them in your class as you want, and they will be executed in order of their appearance (from top to bo...
Is there a way to comment out markup in an .ASPX page?
Is there a way to comment out markup in an .ASPX page so that it isn't delivered to the client? I have tried the standard comments <!-- --> but this just gets delivered as a comment and doesn't prevent the control from rendering.
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How to copy files from 'assets' folder to sdcard?
...ll) for (String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(filename);
File outFile = new File(getExternalFilesDir(null), filename);
out = new FileOutputStream(outFile);
copyFile(in, ...
What is the difference between Serializable and Externalizable in Java?
...her logic, it'll just work. The Java runtime will use reflection to figure out how to marshal and unmarshal your objects.
In earlier version of Java, reflection was very slow, and so serializaing large object graphs (e.g. in client-server RMI applications) was a bit of a performance problem. To han...
Git Push error: refusing to update checked out branch
...a non-bare repository (Edit: Well, you can't push to the currently checked out branch of a repository. With a bare repository, you can push to any branch since none are checked out. Although possible, pushing to non-bare repositories is not common). What you can do, is to fetch and merge from the ot...