More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know.
a. try block followed by catch b. try block followed by finally c. try block followed by catch block and then finally d. try block without catch or finally block
Ans. try block without catch or finally block
Help us improve. Please let us know the company, where you were asked this question :
try block followed by catch block and then finally
try block without catch or finally block
Q963. Which of the following is not the difference between Singleton and Static class ( Class with static members only ) ?
a. Only one object can be created for Singleton class whereas No objects are created for static class. b. Singleton class instance is initiated using new keyword whereas static class instance is created using static method. c. Singleton class can be serialized whereas Static class cannot be. d. Singleton Class can participate in runtime Polymorphism whereas Static class cannot.
Ans. Singleton class instance is initiated using new keyword whereas static class instance is created using static method.
Help us improve. Please let us know the company, where you were asked this question :
Q973. Which of the following do you think is the primary reason you would never use a static class even the application doesn't need multiple requests or threads ?
a. Serialization
b. Runtime Polymorphism
c. Lazy Loading
d. Memory
Ans. Runtime Polymorphism
Help us improve. Please let us know the company, where you were asked this question :
a. A Sequence File contains a binary encoding of an arbitrary number of homogeneous writable objects. b. A Sequence File contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be of same type. c. A Sequence File contains a binary encoding of an arbitrary number of heterogeneous writeable objects. d. A Sequence File contains a binary encoding of an arbitrary number of Writable Comparable objects, in sorted order.
Ans. A Sequence File contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be of same type.
Help us improve. Please let us know the company, where you were asked this question :
a. One Key and One Value b. Multiple Keys and Multiple associated Values c. Multiple Keys and One associated values with each d. One key and associated values.
Ans. One key and associated values.
Help us improve. Please let us know the company, where you were asked this question :
Ans. RI or Reference Implementation is a sample implementation provided for the API's / Specs, usually by their developers. This is usually a part of API documentation.
Help us improve. Please let us know the company, where you were asked this question :
Q984. Develop a simple paint like program using applets ?
Ans. Follow the below steps:
1- import the required class and packages.
2- create a class Drawtest for creating an applet.
3- initialize panles and controls int the init() method.
4- Define the destroy() method to destroy the same.
5- create an instance for draw test class and call the init(0 and start() methods in the main method)).
6- Add a new frame to the applet window and resize it to 300x300.
7- Declare a method get applet infor to display the applet information.
8- Declare two constants LINES , POINTS which are going to be the modes.
9- Define the paint method and perfoem the required operations.
10- Display the result according to the mode selected.
Help us improve. Please let us know the company, where you were asked this question :
Q985. Explain Application / Server architecture being used in your project ?
or
Explain your project architecture ?
Ans. We are using cluster of Web servers and Application servers. Load Balancer is used to manage the load between them. Down the layer we have middleware server and then DB server to access database.
Help us improve. Please let us know the company, where you were asked this question :
Q986. How do you monitor the server resources if inadvertently high traffic is reported ?
Ans. We use SAR command for that purpose. We also have GUI system monitoring tool to keep real time check of requests, load and memory usage.
Help us improve. Please let us know the company, where you were asked this question :
LikeDiscussCorrect / Improve server monitoring production support servers website traffic system monitoring sar application support
Q987. Have you ever faced any problem due to caching?
Ans. Yes , sometime we receive issues related to outdated pages being rendered to the user. In those cases we clear the cache and then try to investigate the reason for that. Sometime the issue is due to comparatively high refresh interval. In those cases we reduce the cache refresh interval.
Help us improve. Please let us know the company, where you were asked this question :
Ans. Fail-fast iterators detect illegal concurrent modification during iteration and fail quickly and cleanly rather than risking arbitrary, non deterministic behavior at an undetermined time in future. Example could be of an Iterator failing if it smells ConcurrentModificationException.
Help us improve. Please let us know the company, where you were asked this question :
More than 3000 questions in repository.
Discuss 
java collections map
Try 1 Question(s) Test
Rarely asked as it was introduced with Java 8.
rare
Asked in 7 Companies 
basic 
Which of the following is not possible ?
