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character showing up in files. How to remove them?
... You need to run with the -CSD switch, or with the PERL_UNICODE envariable set to SD, for that to work.
– tchrist
Sep 4 '11 at 18:24
...
How to use the toString method in Java?
...ul toString() of objects than it is to inspect their members.
There is no set requirement for what a toString() method should do. By convention, most often it will tell you the name of the class and the value of pertinent data members. More often than not, toString() methods are auto-generated in I...
Gson: How to exclude specific fields from Serialization without annotations
...s ExclusionStrategy like this,
Gson gson = new GsonBuilder()
.setExclusionStrategies(new TestExclStrat())
//.serializeNulls() <-- uncomment to serialize NULL fields as well
.create();
Student src = new Student();
String json = gson.toJson(src);
System.out....
What does it mean by buffer?
...es or program processes that operate at different speeds or with different sets of priorities. The buffer allows each device or process to operate without being held up by the other. In order for a buffer to be effective, the size of the buffer and the algorithms for moving data into and out of the ...
Creating a new user and password with Ansible
... password: $1$SomeSalt$UqddPX3r4kH3UL5jq5/ZI.
tasks:
- user: name=tset password={{password}}
If your playbook or ansible command line has your password as-is in plain text, this means your password hash recorded in your shadow file is wrong. That means when you try to authenticate with you...
How do I Sort a Multidimensional Array in PHP [duplicate]
... be reversed -- individually for each column.
It's extensible: if the data set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you ...
How to ssh to vagrant without actually running “vagrant ssh”?
...
You could set the port on your own. Thus the script will be executable from any directory.
– Yser
Dec 15 '14 at 12:54
...
Comment the interface, implementation or both?
...nterface only. Commenting both is duplication and it's likely that the two sets of comments will eventually get out of sync if the code changes. Comment the implementation with "implements MyInterface"... Things like Doxygen will generate docs that include the derived docs into the docs for the impl...
App Inventor 2 JSON数据解析教程 - 解析API返回的JSON数据 · App Inventor 2 中文网
...木块伪代码
when Web1.GotText(url, responseCode, responseType, responseContent) {
if responseCode == 200 {
var jsonData = Web1.JsonTextDecodeWithDictionaries(responseContent)
var title = getDictionaryValue(jsonData, "title")
var body = getDictionaryValue(jsonData, "bo...
How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
...ssage:
app error: Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml` (RuntimeError)
After some research I found out that Rails 4.1 changed the way to manage the secret_key, so if you read the secrets.yml file located at exampleRailsProject/config/secret...