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Java: How to set Precision for double value? [duplicate]
...or double values DecimalFormat is good technique. To use this class import java.text.DecimalFormat and create object of it for example
double no=12.786;
DecimalFormat dec = new DecimalFormat("#0.00");
System.out.println(dec.format(no));
So it will print two digits after decimal point here it wil...
How to install Hibernate Tools in Eclipse?
...r you enter the site, you will find "Hibernate Tools" under "JBoss Web and Java EE Development" / "JBoss Data Services"
– thedrs
Jun 19 '13 at 8:39
...
Is it better to reuse a StringBuilder in a loop?
...antiation was the bottleneck, comment it.
Three runs with this answer:
$ java ScratchPad
1567
$ java ScratchPad
1569
$ java ScratchPad
1570
Three runs with the other answer:
$ java ScratchPad2
1663
2231
$ java ScratchPad2
1656
2233
$ java ScratchPad2
1658
2242
Although not significant, settin...
Eclipse: The declared package does not match the expected package
... me, I'll share how I solved this problem.
It turns out that I opened the java file under the 'src' before declaring it a source directory.
After right clicking on the 'src' directory in eclipse, selecting 'build path', and then 'Use as Source Folder'
Close and reopen the already opened java file...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...d pre-processor features of the compiler. It is possible to use C++, C# or Java compiler. Any ideas???
13 Answers
...
equals vs Arrays.equals in Java
When comparing arrays in Java, are there any differences between the following 2 statements?
8 Answers
...
Is D a credible alternative to Java and C++? [closed]
Is the D language a credible alternative to Java and C++? What will it take to become a credible alternative? Should I bother learning it? Does it deserve evangelizing?
...
Is it possible to use the instanceof operator in a switch statement?
...
Just in case if someone will read it:
The BEST solution in java is :
public enum Action {
a{
void doAction(...){
// some code
}
},
b{
void doAction(...){
// some code
}
},
c{
void doAction(...)...
Why seal a class?
...e type which is subclassed may become mutable (ick)
Item 17 of Effective Java goes into more details on this - regardless of the fact that it's written in the context of Java, the advice applies to .NET as well.
Personally I wish classes were sealed by default in .NET.
...
POST request send json data java HttpUrlConnection
I have developed a java code that convert the following cURL to java code using URL and HttpUrlConnection.
the curl is :
5...