Interview Questions Answers in 3D Animation, Multimedia General, Core Java, Advanced Java, Oracle DBA (Database Administration), C, C++ General, Search Engine Optimization SEO, JavaScript

Question { 1164 }

What are loops in java?

Answer

You would use a loop to execute a statement or a block of statements repeatedly.

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Question { 1141 }

What is an infinite loop?

Answer

An endless loop never stops running and has no conditions. By defining any breaking logic in the body of the statement blocks, you can end an infinite loop.

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Question { 1735 }

What is a class loader?

Answer

The classloader is a component of the Java Runtime Environment (JRE) that is produced or executed when the bytecode is running.Java classes and interfaces must be dynamically loaded into the JVM (Java Virtual Machine) using the class file classloader. The Java runtime system does not require knowledge of files and file systems due to classloaders.

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Question { 2039 }

What is the purpose of the grep command?

Answer

The "grep" command is used to search for specific patterns within files. It is often used for text searching and filtering.

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Question { 1388 }

Why packages are used?

Answer

Java uses packages to manage access, avoid naming conflicts, and facilitate finding and using classes, interfaces, and other components.

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Question { 2053 }

When a byte datatype is used?

Answer

An 8-bit signed two-complement integer is called a byte. Bytes support a minimum value of -128 and a maximum value of 127. It is employed when memory conservation is required and the required range of numbers is -128 to 127.

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Question { 1424 }

What is a pointer in c?

Answer

A pointer is a variable that stores the memory address of another variable.

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Question { 1699 }

What is the difference between malloc() and calloc()?

Answer

 malloc(): Allocates a single block of memory without initializing it.
 calloc(): Allocates multiple blocks of memory and initializes them to zero.

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Question { 1932 }

What is the difference between new() and malloc()?

Answer

• new: Calls constructor, returns an object of the correct type.
• malloc(): Does not call constructor, returns void*.

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Question { 1663 }

What is a domain name?

Answer

Simply put, a domain name is the main name that a website or blog uses. For instance, wscubetech.com is the domain name of the website where you are currently reading the SEO interview questions.

Microsoft's domain name is microsoft.com. Similar to usernames, domain names are unique and cannot be registered if they have already been taken.

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Question { 1501 }

In javascript what is an argument object?

Answer

The arguments supplied to a function are represented by the variables in JavaScript.

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Question { 992 }

List some of the disadvantages of javascript.

Answer

The following are some of JavaScript's drawbacks:

No multithreading support
No multiprocessing support
File reading and writing are prohibited.
Networking apps are not supported.

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Question { 1542 }

List some of the advantages of javascript.

Answer

The following are a few benefits of JavaScript:

There is less server interaction.
Visitors receive fast feedback.
There is a lot of interaction.
Richer interfaces

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Question { 2412 }

What are the super most classes for all the streams?

Answer

ByteStream classes and CharacterStream classes are the two categories into which all stream classes can be separated. InputStream and OutputStream classes are subdivided from the ByteStream classes. Additionally, CharacterStream classes are separated into Writer and Reader classes. Java.io.InputStream is the SuperMost class for all input stream classes, while java.io.OutPutStream is the SuperMost class for all output stream classes. Java.io is also the super-most class among all the reader classes.Reader, and java.io.Writer for all writer classes.

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Question { 1675 }

What is an i/o filter?

Answer

An item that reads from a single stream and outputs data to input and output sources is known as an I/O filter, also known as an input-output filter. It applied this filter using the java.io package.

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