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(#M40029395) JAVA QUESTION java Keep an EYE

Q. What is an abstract class?

A. An abstract class is a class designed with implementation gaps for subclasses to fill in and is deliberately incomplete

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(#M40029394) JAVA QUESTION java Keep an EYE

Q. What is are packages?

A. A package is a collection of related classes and interfaces providing access protection and namespace management

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(#M40029390) JAVA QUESTION java Keep an EYE

Question. What do you mean by platform independence?
Answer. Platform independence means that we can write and compile the java code in one platform (eg Windows) and can execute the class in any other supported platform eg (Linux,Solaris,etc).

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(#M40029387) C QUESTION C Keep an EYE

Question. What is a file?
Answer. A file is a region of storage in hard disks or in auxiliary storage devices.It contains bytes of information .It is not a data type

Asked In C MAN (12 years ago)

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(#M40029386) C QUESTION C Keep an EYE

Question. What do the functions atoi(), itoa() and gcvt() do?
Answer. atoi() is a macro that converts integer to character.
itoa() It converts an integer to string
gcvt() It converts a floating point number to string

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(#M40029384) C QUESTION C Keep an EYE

Question. What are the facilities provided by preprocessor?
Answer. file inclusion
substitution facility
conditional compilation

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(#M40029383) C QUESTION C Keep an EYE

Question. Difference between syntax vs logical error?

Answer.
Syntax Error
These involves validation of syntax of language.
compiler prints diagnostic message.
Logical Error
logical error are caused by an incorrect algorithm or by a statement mistyped in such a way that it doesn't violet syntax of language.
difficult to find

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(#M40029382) C QUESTION C Keep an EYE

Question. What are C identifiers?

Answer. These are names given to various programming element such as variables, function, arrays.It is a combination of letter, digit and underscore.It should begin with letter. Backspace is not
allowed.

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(#M40029381) C QUESTION C Keep an EYE

Q. what are C tokens?
A. There are six classes of tokens: identifier, keywords, constants, string literals, operators and other separators

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(#M40029380) C QUESTION C Keep an EYE

Q. Difference between formal argument and actual argument?

A. Formal arguments are the arguments available in the function definition. They are preceded by their own data type. Actual arguments are available in the function call. These arguments are given as constants or variables or expressions to pass the values to the function.

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