大约有 30,000 项符合查询结果（耗时：0.0359秒） [XML]
What is an efficient way to implement a singleton pattern in Java? [closed]
...ent and difficult to understand why it is necessary.
For details : http://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
Now we are sure about evil thread but what about the cruel serialization? We have to make sure even while de-serialiaztion no new object is created
class Foo i...
AngularJS - Trigger when radio button is selected
...cope) {
$scope.color = {
name: 'blue'
};
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>
<html>
<body ng-app="radioExample">
<form name="myForm" ng-controller="ExampleController">
<input type="radi...
Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
... <manifest android:versionCode to be higher in the AndroidManifest.
or https://stackoverflow.com/a/13772620/632951
share
|
improve this answer
|
follow
|
...
Android Studio Checkout Github Error “CreateProcess=2” (Windows)
...
Steps:
1) Download git for windows https://git-scm.com/downloads
2) Install downloaded git with default setup
3) From Android Studio close if any project is open then Click on Configure -> Settings -> Version Control -> Git
4) Change Path to Gi...
Lisp in the real world
...lisp-lang.org/success/
and a list of current companies using Common Lisp: https://github.com/azzamsa/awesome-lisp-companies
share
|
improve this answer
|
follow
...
Runnable with a parameter?
...
Since Java 8, the best answer is to use Consumer<T>:
https://docs.oracle.com/javase/8/docs/api/java/util/function/Consumer.html
It's one of the functional interfaces, which means you can call it as a lambda expression:
void doSomething(Consumer<String> something) {
...
How to Set focus to first text input in a bootstrap modal after shown
...ks perfectly.
This is a html5 attribute. Supported by all major browsers.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input
share
|
improve this answer
|
follo...
Jackson serialization: ignore empty values (or null)
...
Or you can use GSON [https://code.google.com/p/google-gson/], where these null fields will be automatically removed.
SampleDTO.java
public class SampleDTO {
String username;
String email;
String password;
String birthday;
S...
No identities are available for signing Xcode 5
...ication Loader).
Also - this answer/question may also be helpful for you:
https://stackoverflow.com/a/18914073/730172
share
|
improve this answer
|
follow
|
...
java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
... the issue.
I fix this by following android developers page's instruction:
https://developer.android.com/studio/build/multidex.html
First add this to gradle.build file :
defaultConfig {
...
minSdkVersion 14
targetSdkVersion 21
...
// Enabling multidex support.
multiDexEnab...