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How do I define a method which takes a lambda as a parameter in Java 8?
...eated as Lambda expressions and can be passed by reference (with a little work under the hood). There are plenty of examples online with lambdas being created and used with methods, but no examples of how to make a method taking a lambda as a parameter. What is the syntax for that?
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The command rbenv install is missing
...ion >= 12.10) both rbenv and ruby-build can be installed using apt-get (or aptitude):
sudo apt-get update
sudo apt-get install rbenv ruby-build
On FreeBSD ruby-build is available in the Ports Collection, it can be install both as a binary package or build from the port:
# Using pkgng rbenv wi...
Core dumped, but core file is not in the current directory?
While running a C program, It says "(core dumped)" but I can't see any files under the current path.
12 Answers
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How can I check whether an array is null / empty?
... a key difference between a null array and an empty array. This is a test for null.
int arr[] = null;
if (arr == null) {
System.out.println("array is null");
}
"Empty" here has no official meaning. I'm choosing to define empty as having 0 elements:
arr = new int[0];
if (arr.length == 0) {
Sy...
Could not locate Gemfile
...
You do not have Gemfile in a directory where you run that command.
Gemfile is a file containing your gem settings for a current program.
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Can we define implicit conversions of enums in c#?
... AccountStatus Closed = new AccountStatus(2);
public static readonly SortedList<byte, AccountStatus> Values = new SortedList<byte, AccountStatus>();
private readonly byte Value;
private AccountStatus(byte value)
{
this.Value = value;
Values.Add(value, th...
How to check if a query string value is present via JavaScript?
How can I check if the query string contains a q= in it using JavaScript or jQuery?
10 Answers
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How do I get the calling method name and type using reflection? [duplicate]
...lining)] above SomeMethod to avoid inlining. Passing false to the constructor also prevents loading of file name / line data from PDB files, speeding up the construction of the StackTrace.
– bart
Feb 20 '13 at 0:44
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How to make exe files from a node.js app?
...ternatives, both free and commercial. I haven't used any of them but in theory they should work:
Iexpress (native windows tool)
Quick Batch File Compiler (commercial)
BoxedApp Packer
"Advanced" Batch To EXE Converter" (freeware)
Most will require you to keep the batch file as main executable, an...
Creating runnable JAR with Gradle
Until now I created runnable JAR files via the Eclipse "Export..." functionallity but now I switched to IntelliJ IDEA and Gradle for build automation.
...