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How will u make transactions with creditcard? I.e., will u deduct money from the card Immediately after making transaction?
ACE_GEEK
- Jul 22nd, 2008
Actually Credit card transactions are not instant. The transactions generate a what is called as Auth code (authorization code) which entitles you to get the money and at the same time the money is bl...
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How will u achieve threads?
ACE_GEEK
- Jul 22nd, 2008
If your question was how to create threads, you can do it by 2 methods.1. You can extend the Thread class2. You can implement the Runnable interface.
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____________ is a highly optimized set of instructions designed to be executed by the Java run-time system
A) Byte CodeB) FirewallC) Tetra CodeD) View Code
khadimsiddiqui
- Jul 30th, 2008
byte code is correct answer because when saved a file in .java extension after compilation it will be converted as .class fie.it has byte code and these byte codes are used in java runtime system. The...
skumaran_15
- Dec 14th, 2005
ByteCode.Explanation: JVM interprets the required part of the bytecode to make the execution speed.
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How do you implement arraylist without using collection framework?
SMART_PRATEEK2001
- Aug 1st, 2008
/* This only adds & removes the elts from an arraylist */class myArrayListSecond{ private static int maxsize; private static Object data[]; private static int index; public myA...
dgshivas
- Feb 25th, 2008
When ever you try to use arrayList ,indirectly you are using Collection frame work.List implements Collection interface
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Adding Two Numbers
How to add two numbers without using arithmetic operators?
antony75
- Aug 4th, 2008
int firstnumber = 1int secondno =2for(int count =0;count<secondno;count++){ firstnumber++;System.out.println(firstnumber);}
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HTTP Status 500
Followign down error i get when i try to login to my page.here my front login page is open and then when i try to login that time this error i reciving.here my server is AIX server and TOMCAT webserver and DB2 database i m using.Few month before this portal was working and now giving this error.please give me any solution if u have.====================================HTTP Status 500 - --------------------------------------------------------------------------------type...
srinivasan_81
- Aug 4th, 2008
Please let us know what action are you trying to perform after login? Are you getting this error while login? Have you stored login members list and trying to retrieve them from DB and while retrieving are you getting this error? if so check up your JDBC connections and the resultset.
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What is the base class for all swing components
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Can the Swing application if you upload in net, be compatible with your browser
mrsunilg
- Aug 6th, 2008
Yes. Because Swing uses light weight components. Light weight components are the components which are independent of platform and are written in Java.
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What is the method used to clear the buffer
r.praveenkumar
- Aug 7th, 2008
BufferedWriter obj=new BufferedWriter(new FileWriter(new File("test.txt")));obj.write("hai"); //after this without using flush if u close obj "hai" will...
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How to connect to database through java without creating dsn?
Ashique
- Aug 13th, 2008
Steps Includes:1. Get the URL where the database is exist, get the user name and the password.2. Register the proper database driver.3. Get database connection using DriverManager with the above infor...
vini.rana
- Aug 12th, 2008
We have four types of driverstype1, type2, type3, type4 and we use JDBC and ODBC.We can connect the database b/w two computers using type 3 and 4 drivers. Type 3 and 4 directly calls the native metho...
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State true or false:- Can a byte object be cast to a double value ?
A) TrueB) False
raghuprasad
- Aug 25th, 2008
Yes, byte object can be casted to a double value. checkout executing java program!Raghu.
rajandeepvij
- Aug 22nd, 2008
Public class Conversion
{
/** * @param args */
public static void main(String[] args)
{
// TODO Auto-generated method stub
Object obj='6';
String str = obj.toString();
double d = Double.valueOf(str).doubleValue();
System.out.println(d);
}
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State true or false :- The word synchronized can be used with only a method.
A) FalseB) True
raghuprasad
- Aug 25th, 2008
False. The word synchronized can also be used to make a block of code synchronized.Eg: synchronized(object) { ............code........... }Raghu.
jagadeesh_32
- Aug 23rd, 2008
False, because synchronized keyword is used as block also.Ex:synchronized blocks can lock within code for just a few instructions and on any object whatsoever: synchronized (anyObject) { // .. object is handled atomically here }
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The simplest form of the for loop in Java is for(initialization; condition; iteration) statement;
A) TrueB) False
arthynatakala
- Aug 29th, 2008
The simplest form of the for loop in Java?is for (initialization; condition; incrementation) statement;
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Java enables the creation of cross-platform programs by compiling into an intermediate representation called Java ____________
A) Byte CodeB) FirewallC) Tetra CodeD) View Code
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Write a code that returns the number of names in a given array that end in either "ie" or "y"?
disskyz29
- Sep 3rd, 2008
public class Names { public static void main (String [] args) { int count = 0; String names[] = {"Valerie", "Jia", "Debbie", "Harvey&...
srinivasan_81
- Aug 3rd, 2008
The below code produces the output along with the names that have the conditions:class StringTest { public static void main(String[] args) { String s[]={"jennie","...
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Which class has no duplicate elements
shilpad
- Sep 8th, 2008
The java.util.Set interface and related implementations dont support
duplicate elements.mrsunilg
- Aug 6th, 2008
Java.util.Set Packages, there is no duplicate elements. Bcoz these interfaces doesn't allows the duplicate values or elements. For example. HashMap, HashSet, TreeSet and so on.
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Java I/O is based on the concept of _________
Skill/Topic: AWT & AppletsA) ClassesB) StreamsC) BuffersD) Threads
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Garbage collections
What is marker sweeper algorithm in garbage collection?
ramkrishnag
- Sep 9th, 2008
Mark and Sweep garbage collection is 2 phase algorithm.In the first phase, it finds and marks all accessible objects recursively and in second phase it scans through the heap and reclaims all the unma...
bh2008
- Jun 30th, 2008
"Mark the unused object for garbage collection and collect it."As per the algorithum there will be two thread.One will mark all the unreferenced object for garbage collection and the other will reclaim the marked object memory.
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Can a lock be acquired on a class
Yes, a lock can be acquired on a class. This lock is acquired on the class's Class object..
derrick.paul
- Sep 12th, 2008
As your might already know, any synchronisation needs an object (monitor) to acquire lock one. See below for the three different types on how to synchronise code.public class A{ // A monitor obj...
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Doesn't the compiler always make a no-arg constructor for you?
hsavinash2001
- Sep 16th, 2008
Compiler provides a no-arg constructor when don't specify any constructor in your class. If you do provide a constructor (with or without args), it will expect you only to fill in the no-arg constructor and it won't provide one.
ramesh chandra
- Jan 2nd, 2007
hi there wil be always a default constructor raised with no arguements
Java Interview Questions
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