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adding multiple entries to a HashMap at once in one statement
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You can use the Double Brace Initialization as shown below:
Map<String, Integer> hashMap = new HashMap<String, Integer>()
{{
put("One", 1);
put("Two", 2);
put("Three", 3);
}};
As a piece of warning, please refer to the thread Efficiency of Java “Double Brace Ini...
Removing the first 3 characters from a string [closed]
What is the most efficient way to remove the first 3 characters of a string?
3 Answers
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Get connection string from App.config
...connection =
System.Configuration.ConfigurationManager.
ConnectionStrings["Test"].ConnectionString;
Your assembly also needs a reference to System.Configuration.dll
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How to use stringstream to separate comma separated strings [duplicate]
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#include <iostream>
#include <sstream>
std::string input = "abc,def,ghi";
std::istringstream ss(input);
std::string token;
while(std::getline(ss, token, ',')) {
std::cout << token << '\n';
}
abc
def
ghi
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Binding a list in @RequestParam
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Or you could just do it that way:
public String controllerMethod(@RequestParam(value="myParam[]") String[] myParams){
....
}
That works for example for forms like this:
<input type="checkbox" name="myParam[]" value="myVal1" />
<input type="checkbox" ...
How do I test if a string is empty in Objective-C?
How do I test if an NSString is empty in Objective-C?
30 Answers
30
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How to construct a timedelta object from a simple string
I'm writing a function that needs a timedelta input to be passed in as a string. The user must enter something like "32m" or "2h32m", or even "4:13" or "5hr34m56s"... Is there a library or something that has this sort of thing already implemented?
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How to change title of Activity in Android?
...u can set it with
android:label="My Activity Title"
Or
android:label="@string/my_activity_label"
Example:
<activity
android:name=".Splash"
android:label="@string/splash_activity_title" >
<intent-filter>
<action android:name="android.inten...
Resolve Type from Class Name in a Different Assembly
...d provide a fully qualified assembly name like such:
Type.GetType("System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
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How can I selectively escape percent (%) in Python strings?
... be supported in lieu of its similarity to c, c++, etc. str.format() and f-strings are preferred but not enforced.
– Aaron
Apr 7 '17 at 21:02
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