Technology Questions

Q:

What is the difference between creating String as new() and literal ?

Answer

When we create string with new() Operator, it’s created in heap and not added into string pool while String created using literal are created in String pool itself which exists in PermGen area of heap.



String s = new String("Test");

does not put the object in String pool , we need to call String.intern() method which is used to put them into String pool explicitly. its only when you create String object as String literal e.g. String s = "Test" Java automatically put that into String pool.

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Q:

Is Java a pure object oriented language?

Answer

Java uses primitive data types and hence is not a pure object oriented language.

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Subject: Java

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Q:

Why is free space left in KSDS Dataset?

Answer

While allocating KSDS Datasets, free space is declared at regular intervals at the time of initial loading. This is done because this free space is utilized for keeping the data arranged in sequence physically, even though inserted randomly.

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Q:

How does IDMS communicate with CICS?

Answer

They communicate via service MVS request calls.

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Q:

What’s the difference between htmlentities() and htmlspecialchars()?

Answer

Htmlentities() converts all applicable characters to HTML entities. While htmlspecialcharacter()converts special characters to HTML entities. This means htmlentities( ) will check for non English language characters, such as French accents, the German umlaut, etc.

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Subject: PHP

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Q:

What are Child Selectors ?

Answer

A child selector is used when you want to match an element that is the child of another specific element.
The parent and child selectors are separated by spaces.
The following selector locates an unordered list element within a paragraph element and makes a text within that element bold.


p > ul {font-weight: bold;}

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Subject: Web Technology

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Q:

In a single virtual machine, the Java programming language passes arguments by

A) Refference B) Value
C) Both A and B D) None
 
Answer & Explanation Answer: B) Value

Explanation:

In single virtual machine,JVM passes arguments only by value.

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Filed Under: Java

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Q:

What is difference between HTML and XHTML?

Answer

The differences between HTML and XHTML are:


- HTML is application of Standard Generalized Markup Language(SGML) whereas XML is application of Extensible Markup Language(XML).


- HTML is a static Web Page whereas XHTML is dynamic Web Page.


- HTML allows programmer to perform changes in the tags and use attribute minimization whereas XHTML when user need a new markup tag then user can define it in this.


- HTML is about displaying information whereas XHTML is about describing the information.

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Subject: Web Technology

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