well Immutability offer several advantages :
1) Immutable object like String and wrapper can be used as key in HashMap (those are most used keys anyway)
2) Immutability enable them to be reused...
Type: Posts; User: javabuddy
well Immutability offer several advantages :
1) Immutable object like String and wrapper can be used as key in HashMap (those are most used keys anyway)
2) Immutability enable them to be reused...
1. first run your command from command prompt, if success than create batch file
2. check Java is in path
3. Check ExportPDFTool.jar has main class or not
If you are running Java program from...
You can see How HashMap works in Java an interesting article.
You can increase heap size in Java by using parameter -Xmx and -Xms . for example see my post 10 points on Java heap Space
Nothing can beat a real world experience , build something which can be used by some one else and if not than at least build which you can use. Real world application brings lot of small points and...
isn't reading from InputStream e.g. System.in is a blocking call ?
If you don't have PC then how are you posting ? just curious :)
On General note whenever you write Game there is suppose to be a Game thread which is an while loop continuously running until game is over or stopped, in this loop you check condition, take action...
It depends if listener has to be used by multiple object than making it a full fleged class make sense but if its only attached to one element than having them as inner class is ok.
Static in Java means it all related to class , nothing at instance level.
1) static method or field can be accessed by using Class name and that's the recommended way.
2) non static field can...
see this link Why String is immutable or final in Java
Hi All,
I beleive ConcurrenthashMap is optimized for multiple reader and single writer and it achieved it by locking portion of map defined by some constant like "ConcurrencyLevel" in...
Hi Guys,
I am a relative new member in this form , My name is Javin Paul and I am Java programmer. I have question related to garbage collection in Java
Does garbage collection occurs in PERM...
You can use List to create a Menu and Menu items in J2ME.
e.g.
List simpleMenu = new List("MyListMenu", Choice.IMPLICIT);
menu.append("File", null);
menu.append("View", null);
...
welcome buddy I am new too and looking forward some good time here
Cheers