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 Categories >> Software >> Java Related >> Java J2EE >> Core Java
 
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Question Asked @ Answers Views     Select
For technical interview question please sir send me because tomorrow my interview    1  13
what is ABSTRACTION and what are using in real time project?    0  9
ublic class Java_Coding_Samples { public static void JavaHungr(NumberFormatException ae){ System.out.println("integer"); } public static void JavaHungry(Exception e){ System.out.println("string"); } public static void JavaHungry(ArithmeticException ae){ System.out.println("object"); } public static void main(String[] args) { JavaHungry(null); }    0  61
what is the difference between static class and singleton class? can we create static class?    2  243
what is associative array    1  143
Why java does not supports multiple inheritance?    3  1095
java Api provided try catch finally ,try catch(its ok) but why try finally and exception occured at try then how the flow is?    1  317
Can static methods be overridden?    4  2796
What design pattern you have used in your project? I answered Factory pattern, how it is implemented? What are its advantage? Do know about Abstract Factory?    0  580
What collections you have worked on? Internal working of Hashmap?    0  529
INTERVIEW QUESTION FOR ANDROID    0  464
String is mutable or immutable?    2  2994
What is OOPs & Why?    1  1314
In collection sorting comparable and comparator interface will be used..but why this two interfaces required..two will work same purpose so why there are two interfaces instead of one?when to use comparator and when to use comparable?    1  1721
Why method overloading and method overriding required in java?    1  1554
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Un-Answered Questions
 
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how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT 536
write a program that list all permutations of ABCDEF in which A appears before B? 690
Why does java doesnt suuport unsigned values? 613
how to write a server program and sending the mails to the server using smtp protocol please help me 367
take an array with -ve and +ve value both.find out the nearest value of 0(zero).if two values are same like(-2 and +2)then extract +2 is nearest of 0(zero). 439
what are Hostile Applets? 430
Howto get an object that will perform date & time calculations then format it for output in some different locales with different date style.can ne1 tel me the answer of this question.pls 378
How to display names of all components in a Container? 1113
What releases of Java technology are currently available? What do they contain? 517
Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn). 480
Hi friends am new to java. I read jar file means collection of java files. For executing struts application what are the necessary jar files. " struts.jar " file contains what. can u explain 428
what is dafault constructor and paramererised constructor with example? 569
Say you want to store the information about a number of pets in an array. Typical information that you could store for each pet (where relevant) would be • Breed of animal • Animal's name • Its birth date • Its sex • Whether it has been sterilised or not • When it is due for its next inoculation • When it last had its wings clipped For each type of pet (eg. dog, cat or bird) you would typically define a class to hold the relevant data. Note: You do not need to implement these classes. Just answer the following questions. 3.1.1 What would be the advantage of creating a superclass (eg. Pet) and declaring an array of Pet objects over simply using an array of Objects, storing each of the instances of the different pet classes (eg. Dog, Cat or Bird) in it? 3.1.2 Would you define Pet as a class or as an interface? Why? (2) (2) 322
How to Sort Strings which are given in List and display in ascending order without using java api. 1651
what is the use of bean managed and container managed with example? 447
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