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What are the differences between “generic” types in C++ and Java?
...class PhoneNumbers {
private Map phoneNumbers = new HashMap();
public String getPhoneNumber(String name) {
return (String)phoneNumbers.get(name);
}
...
}
because all the Java collection types used Object as their base type so you could put anything in them. Java 5 rolls around and a...
Should a “static final Logger” be declared in UPPER-CASE?
...stants if they are immutable. by this logic, you would never have constant strings because any static final string is a reference.
– Jeffrey Blattman
Jan 25 '13 at 4:04
30
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How can I generate an MD5 hash?
Is there any method to generate MD5 hash of a string in Java?
34 Answers
34
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How do you convert a jQuery object into a string?
How do you convert a jQuery object into a string?
12 Answers
12
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How do I replace whitespaces with underscore?
I want to replace whitespace with underscore in a string to create nice URLs. So that for example:
13 Answers
...
Get Enum from Description attribute [duplicate]
...static class EnumEx
{
public static T GetValueFromDescription<T>(string description) where T : Enum
{
foreach(var field in typeof(T).GetFields())
{
if (Attribute.GetCustomAttribute(field,
typeof(DescriptionAttribute)) is DescriptionAttribute attr...
How do I URl encode something in Node.js?
...
The built-in module querystring is what you're looking for:
var querystring = require("querystring");
var result = querystring.stringify({query: "SELECT name FROM user WHERE uid = me()"});
console.log(result);
#prints 'query=SELECT%20name%20FROM%20u...
JavaScript math, round to two decimal places [duplicate]
...Number/toFixed
Edit - As mentioned by others this converts the result to a string. To avoid this:
var discount = +((price / listprice).toFixed(2));
Edit 2- As also mentioned in the comments this function fails in some precision, in the case of 1.005 for example it will return 1.00 instead of 1.01. ...
RESTful call in Java
...rns you an InputStream. You will then have to convert your input stream to string and parse the string into it's representative object (e.g. XML, JSON, etc).
Alternatively, Apache HttpClient (version 4 is the latest). It's more stable and robust than java's default URLConnection and it supports mos...
Default value in Go's method
...r chooses to use default values
// Both parameters are optional, use empty string for default value
func Concat1(a string, b int) string {
if a == "" {
a = "default-a"
}
if b == 0 {
b = 5
}
return fmt.Sprintf("%s%d", a, b)
}
**Option 2:** A single optional parameter at the end
/...