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Accessing last x characters of a string in Bash
I found out that with ${string:0:3} one can access the first 3 characters of a string. Is there a equivalently easy method to access the last three characters?
...
How to make an array of arrays in Java
Hypothetically, I have 5 string array objects:
4 Answers
4
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Regular expression to match URLs in Java
... tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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Spring Boot - inject map from application.yml
...ionProperties
public class MapBindingSample {
public static void main(String[] args) throws Exception {
System.out.println(SpringApplication.run(MapBindingSample.class, args)
.getBean(Test.class).getInfo());
}
@Bean
@ConfigurationProperties
public Test t...
Floating point vs integer calculations on modern hardware
...application. If you are developing for the x86 architecture, and you need extra performance, you might want to look into using the SSE extensions. This can greatly speed up single-precision floating point arithmetic, as the same operation can be performed on multiple data at once, plus there is a ...
Read/write to Windows registry using Java
... following code obtains the exact windows distribution from the registry:
String value = WinRegistry.readString (
WinRegistry.HKEY_LOCAL_MACHINE, //HKEY
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", //Key
"ProductName"); ...
Stop “developer tools access needs to take control of another process for debugging to continue” ale
... <false/>
<key>class</key>
- <string>user</string>
+ <string>rule</string>
<key>comment</key>
<string>For use by Apple. WARNING: administrators are advised
not to modif...
class
...). Usually, this is used to define class/module ("static") methods:
class String
class << self
def value_of obj
obj.to_s
end
end
end
String.value_of 42 # => "42"
This can also be written as a shorthand:
class String
def self.value_of obj
obj.to_s
end
end
O...
How can I get the current date and time in UTC or GMT in Java?
...stance of Calendar which uses the local timezone, or possibly using Date.toString() which also uses the local timezone, or a SimpleDateFormat instance, which, by default, also uses local timezone.
If this isn't the problem, please post some sample code.
I would, however, recommend that you use Jod...
What is a Python equivalent of PHP's var_dump()? [duplicate]
...
what about showing the type of var? like Null/None, String, Object..
– holms
Apr 25 '12 at 12:42
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