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Trắc nghiệm Ngôn Ngữ Lập Trình C++ - Bài 30
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1-
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What function initalizes variables in a class:
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A -
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Constructor
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B -
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Destructor
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C -
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Constitutor
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D -
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A and B are correct.
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2-
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To include code from the library in the program, such as iostream, a directive would be called up using this command.
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A -
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#include <>; with iostream.h inside the brackets
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B -
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include (iostreamh)
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C -
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#include <> with iostream.h inside the brackets
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D -
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include #iostream,h;
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3-
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Single line comments explaining code would be preceded like in the following example
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A -
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/**
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B -
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//
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C -
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*//
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D -
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/*
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4-
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Which line has all reserved words ?
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A -
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char, int, float, doubled, short, long, unsigned, signed
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B -
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sizeof, const, typedef, static, voided, enum, struct, union
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C -
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if, else, for, while do, switch, continue, break
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D -
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defaulted, goto, return, extern, private, public, protected
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5-
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What punctuation must each command line have at the end of the line ?
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A -
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:
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B -
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,
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C -
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!
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D -
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;
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6-
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The C++ language is
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A -
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case-sensitive.
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B -
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Not case-sensitive.
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C -
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It depends
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D -
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None of these
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7-
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The number 5.9875e17 must be stored in a(n):
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A -
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int
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B -
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long
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C -
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double
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D -
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float
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8-
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Select the correct definition for a string variable.
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A -
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string mystr;
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B -
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string mystr[20];
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C -
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string[20] mystr;
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D -
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char mystr[20];
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9-
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The sentence "Hello world!" uses _____ elements in a character array.
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A -
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10
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B -
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11
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C -
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12
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D -
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13
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10-
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When you are creating a structure, you need to use the following keyword
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A -
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structure
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B -
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struct
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C -
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object
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D -
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record
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[Người đăng: Thành Lãm - ST] |
