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What's the difference of “./configure” option “--build”, “--host” and “--target”?
...
As noted in this blog post and alluded to in the GCC Configure Terms, --target only applies when you are compiling toolchains. When you are doing normal cross-compilation of a library or binary you use
--build=the architecture of the build machine
--hos...
How to get the user input in Java?
...ss
import java.util.Scanner;
//...
Scanner scan = new Scanner(System.in);
String s = scan.next();
int i = scan.nextInt();
BufferedReader and InputStreamReader classes
import java.io.BufferedReader;
import java.io.InputStreamReader;
//...
BufferedReader br = new BufferedReader(new InputStreamReade...
Node.js Best Practice Exception Handling
...in Error object
TL;DR: It pretty common to see code that throws errors as string or as a custom type – this complicates the error handling logic and the interoperability between modules. Whether you reject a promise, throw exception or emit error – using Node.JS built-in Error object increases ...
How to concatenate two numbers in javascript?
...
Use "" + 5 + 6 to force it to strings. This works with numerical variables too:
var a = 5;
var b = 6;
console.log("" + a + b);
share
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impro...
Convert base class to derived class [duplicate]
... { get; set; }
}
class B
{
public int IntProp { get; set; }
public string StrProp { get; set; }
}
In global.asax or application startup:
AutoMapper.Mapper.CreateMap<A, B>();
Usage:
var b = AutoMapper.Mapper.Map<B>(a);
It's easily configurable via a fluent API.
...
Unfortunately MyApp has stopped. How can I solve this?
...ked on the blue link it gave me, and it took me here:
mTextView.setText(myString);
So, now I want to debug. According to this StackOverflow question, a NullPointerException says that something is null.
So, let's find out what is null. There's two possibilities. Either mTextView is null, or myStr...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
...
public class KeyAndValue<T>
{
public string Key { get; set; }
public virtual T Value { get; set; }
}
public class KeyAndValue : KeyAndValue<string>
{
public override string Value { get; set; }
}
This is an extension off the existing answers. It ...
How do servlets work? Instantiation, sessions, shared variables and multithreading
...of the information about the HTTP request, such as its URL, headers, query string and body. The response object provides the ability to control and send the HTTP response the way you want by, for instance, allowing you to set the headers and the body (usually with generated HTML content from a JSP f...
What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...ion:
Thrown when an application tries to
load in a class through its string
name using:
The forName method in class Class.
The findSystemClass method in class ClassLoader.
The loadClass method in class ClassLoader.
but no definition for the class with
the specified nam...
Android WebView: handling orientation changes
...n the manifest:
<activity android:name="..."
android:label="@string/appName"
android:configChanges="orientation|screenSize"
for more info see:
http://developer.android.com/guide/topics/resources/runtime-changes.html#HandlingTheChange
https://developer.android.com/reference...