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How to check for a valid URL in Java?
What is the best way to check if a URL is valid in Java?
8 Answers
8
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How to sort a HashMap in Java [duplicate]
...cess order. And finally if you're doing a lot of this you might check out Java 1.6 and NavigableMap, awesome stuff!
– Mark Bennett
Jan 5 '12 at 0:58
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Java Interfaces/Implementation naming convention [duplicate]
...ck. Not ITruck because it isn't an ITruck it is a Truck.
An Interface in Java is a Type. Then you have DumpTruck, TransferTruck, WreckerTruck, CementTruck, etc that implement Truck.
When you are using the Interface in place of a sub-class you just cast it to Truck. As in List<Truck>. Putti...
Rounding a double to turn it into an int (java)
...
import java.math.*;
public class TestRound11 {
public static void main(String args[]){
double d = 3.1537;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(2,BigDecimal.ROUND_HALF_UP);
// output is 3.15
Syste...
LINQPad [extension] methods [closed]
...uild queries:
// Dynamically build simple expression:
new Hyperlinq (QueryLanguage.Expression, "123 * 234").Dump();
// Dynamically build query:
new Hyperlinq (QueryLanguage.Expression, @"from c in Customers
where c.Name.Length > 3
select c.Name", "Click to run!").Dump();
You can also write yo...
If using maven, usually you put log4j.properties under java or resources?
...our classpath in your run configuration: Run->Run Configurations...->Java Application->New select the Classpath tab, select Advanced and browse to your src/resources directory.
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How to return multiple values? [duplicate]
Is it possible to return two or more values from a method to main in Java? If so, how it is possible and if not how can we do?
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What do 3 dots next to a parameter type mean in Java?
... that method.
See the "Arbitrary Number of Arguments" section here: http://java.sun.com/docs/books/tutorial/java/javaOO/arguments.html#varargs
In your example, you could call it as any of the following:
myMethod(); // Likely useless, but possible
myMethod("one", "two", "three");
myMethod("solo");
my...
How to convert a Binary String to a base 10 integer in Java
...ause I have to do a school project with conversions without using the ones java already has
– bucksnort2
Oct 16 '13 at 13:46
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Find TODO tags in Eclipse
When I used Eclipse to add unimplemented methods to a Java class to fix an error, methods were auto-generated and include // TODO Auto-generated method stub
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