Interview Questions and Answers for 'L' | Search Interview Question

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Q571. How would you design a Thread Pool ?

Design

Ans. By using Executor Framework , we can create Thread pool

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Q572. Write Java code that would cause deadlock ?

Core Java

Ans. https://howtodoinjava.com/java/multi-threading/writing-a-deadlock-and-resolving-in-java/

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Q573. How Bitly shortens the URL ?

Web

^{This question was recently asked at 'Symantec'.This question is still unanswered. Can you please provide an answer.}

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Q574. how is the internal code for the "volatile" implemented ?

Core Java

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Q575. What will happen if there is an exception in Java finally block ?

Core Java

Ans. The regular behavior of exception handling will occur. It will look for any immediate catch handler and if none is provided, it would be transmitted to the callers until a catch handler is found or it's out of main function.

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Q576. Can you explain any of your project bug for which you had to struggle a lot ?

General

^{This question was recently asked at 'Bloomberg'.This question is still unanswered. Can you please provide an answer.}

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Q577. What is immutability and What are it's disadvantages ?

Design

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Q578. What are the disadvantages of Design Patterns ?

Design Pattern

Ans. 1. Design patterns are abstraction heavy and hence sometimes creates memory and performance overheads.

2. Sometimes they create unnecessary complexity without much added advantage.

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Q579. Design a Whats app like messaging application.

architecture

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Q580. Given a String with letters , numbers and special characters , extract Tokens from it. The rules for Token extraction are ac follows

1. Should for token of all characters till a number or special character is found
2. Should form token of all numbers till a character or special character is found
3. Special character in itself is a token
4. Ignore white spaces

For example - Bob Said "He is here"

should result in

Bob A
Said A
" S
He A
is A
here A
" S

where a is specifying alphabet and S as special character

Design

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Q581. What is setter injection ?

Spring

Ans. Setter Injection in Spring is a type of dependency injection in which the framework injects the dependent objects into the client using a setter method.

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Q582. Tell something about Dependency Injection and it's drawbacks. In which situation, you may not like to use dependency injection ?

Design

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Q583. Design a Program to clone an object and all it's children.

Design

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Q584. What is the difference between dynamic programming and the brute force algorithm?

Algorithm

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Q585. Tell about shallow and deep cloning ?

Core Java

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Q586. Have you faced any problem integrating software / services with any of your partners or vendors ?

General

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Q587. What development process / methodology are you using ? Are you using agile ?

General

^{This question was recently asked at 'Spillman Technologies'.This question is still unanswered. Can you please provide an answer.}

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Q588. Why do want to leave your current job ?

General

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Q589. How can we make sue that only 1 object gets created ?

Design

Ans. We can use Singleton Design Pattern.

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Q590. Why did you chose programming as your career ?

General

Ans. I was always fascinated by mathematics and statistics and hence chose programming as I found It to be fit ground for utilizing those skills.

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Q591. What is difference between url based and component based web application ?

J2EE

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Q592. Which is the best collections for maintaining elements in an order ?

Core Java

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Q593. What is the use of @Import and @ImportResource anotations ?

Ans. The @Import annotation is used to import one or more @Configuration classes. This annotation provides the functionality equivalent to element in xml based configuration.

The @ImportResource annotation is used to import one or more XML configuration files.

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Q594. Write code to redo and undo without using system functions ?

Design

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Q595. What is XPath ?

XML

Ans. XPath (XML Path Language) is a query language for selecting nodes from an XML document. In addition, XPath may be used to compute values (e.g., strings, numbers, or Boolean values) from the content of an XML document

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Q596. what is a qualified name ?

XML

Ans. QNames were introduced by XML Namespaces in order to be used as URI references.It defines a valid identifier for elements and attributes. QNames are generally used to reference particular elements or attributes within XML documents.

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Q597. Is XML case sensitive ?

XML

Ans. Yes

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Q598. what kind of dtd have you worked with ?

XML

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Q599. what are well formed and valid xmls ?

XML

Ans. Well formed xml has all tags closed in the right order. well formed refers to syntax.
Valid xml is xml that succeeds validation against a DTD

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Q600. what kind of front end java have you worked with ?

General

Ans. [Open Ended Answer]

Possible Answer - I have worked with building thick client using Java , SWT and RCP.

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