-
Explain java security model
sivanesh.a
- Dec 4th, 2006
JIT just in time compiler is used by java. it validates the security constraint in java coding by verifying the magic number used in class file..
-
When to extend Thread Class and when to implement Runnable Interface
Jassi
- Sep 28th, 2006
Hi, i will always prefer the Runnable Interface. Reason being, if u extend to Thread class, then u cannot extend any other class from ur application. So if there is a class that can provide useful fun...
-
What is full form of 'J2SDK' in Java
Feroz Majid Shah
- Oct 7th, 2006
Java Standard Development Kit
-
Whatis the difference between the static variable and ordinary variable?gimme an example pls!........
sivanesh.a
- Dec 4th, 2006
Static variable will be shared by other objects also.. so memory is saved.. whereas with normal variables it is not possible.
Guest
- Nov 29th, 2006
Static variable is called even before the instance of the class is created.
-
-
-
-
fs.write (blk, 0, blk.length);
fs.close();
During writing a file I want use encoding like ISO-8859-1. I can't use Writer because my contents are byte stream. Same way I can't use BufferedOutputStream or DataOutputStream because its not supporting encoding. How do I solve this. Please help me. ">I have a file whose contents are written in french. I want to read that file and edit the file and then write the contents back to the same file. How do I do that?I am reading file content is instanceof ByteBlock only. Then I am using byte[] blk = ((ByteBlock) content).bytes();FileOutputStream fs = new FileOutputStream("a.txt");fs.write (blk, 0, blk.length);fs.close();During writing a file I want use encoding like ISO-8859-1. I can't use Writer because my contents are byte stream. Same way I can't use BufferedOutputStream or DataOutputStream because its not supporting encoding. How do I solve this. Please help me.
-
-
-
Take 2 classes.i.e., Class A,Class B. In Class B declare constructor as Private.But I have to access Class A using the constructor in Class B. How is it possible?One interviewer told that Through getInstance() method it's possible to access Class A.e Even Class B declare as Private. How is it possible? Explain with an example.
Suneet Jain
- Nov 20th, 2006
class A { public static void main(String[] as) { B b = B.getInstance(); // get the instance of Class B and store it in variable b ...
-
-
How can you invoke parameterized constructor to create object from class reference?
utpal_utkalit
- Nov 16th, 2006
Here is the snap shot of the working solution to the said question..try{System.out.println("class name is "+class_name);Class cls=Class.forName(class_name);Constructor[] ctorlist=cls.getConstruc...
utpal utkalit
- Nov 15th, 2006
I mean,how would you construct object thru virtual constructor...
-
else if (month==3||month==4||month==5)
season = "spring";
else if (month==6||month==7||month==8)
season = "summer";
else if (month==9||month==10||month==11)
season = "autumn";
else
season = "bogus month";
System.out.println(season);
}
}">Although the output of following is spring, but how can we use the command line argument for the same program? pls solve thisthanks in advanceclass Ifelse{public static void main(String arr[]){int month=4;String season;if (month==12||month==1||month==2)season = "winter";else if (month==3||month==4||month==5)season = "spring";else if (month==6||month==7||month==8)season = "summer";else if (month==9||month==10||month==11)season = "autumn";elseseason = "bogus month";System.out.println(season);}}
-
-
How can we connect to a database without using connection class?
Srikanth Rao
- Nov 13th, 2006
using DataSources We can Connect to DataBase
srinivasaraobora
- Oct 15th, 2006
Hi,I think it is possible by Hibernate (ORM tool).if any one want example code plz send a mail to id.keeps smiling and mailingbora_srinivasarao@yahoo.co.incell:+919989190898"HELP EVER HURT NEVER"&...
-
-
-
-
Can a reference variable of an interfece holds the address of an object of a class that implements that interfaceExampleclass X implements Y{ //Method Implementations of Interface public static void main(String args[]) { Y y=new X(); }}
Radhakrishna
- Nov 9th, 2006
yes reference variable of interface type can hold the address of the object of a class which implements that interface but we can call the only those methods which are declared in that interface...
Pardhas
- Aug 13th, 2006
Yes. reference variable of an interfece holds the address of an object of a class that implements that interface
Java Interview Questions
Ans