When c++ is working with an operator, it strives to convert the operands to the same type.?

When C++ is working with an operator it strives to convert operands to the same type?

When C++ is working with an operator, it strives to convert the operands to the same type. When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive. In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision.

When C++ is working with an operator?

When C++ is working with an operator, it strives to convert operands to the same type. the specific rules that govern the evaluation of mathematical expressions.

When the fixed manipulator is used the value specified by the Setprecision manipulator will be the number of digits to appear after the decimal point?

chap 3

Question Answer
When the fixed manipulator is used, the value specified by the setprecision manipulator will be the number of digits to appear after the decimal point. true
What is the value of number after the following statements execute? int number = 10; number += 5; number -= 2; number *= 3; 39

When a user types values at the keyboard those values are first stored?

Terms in this set (26) -When the user types values at the keyboard, those values are first stored in an area of memory known as they keyboard buffer.

Is Setprecision sticky?

Setprecision ( ) is ” sticky.” Whatever precision you set, sticks with the cout device until such time as you change it with an additional setprecision ( ) later in the program.

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When the increment operator precedes its operand as in ++ num1 the expression is in this mode?

Review Written Exam

A B
prefix When the increment operator precedes its operand, as in ++num1, the expression is in _______ mode.
> In the statement if (x ++ > 10), the _____ operator is used first
sentinel A __________ is a special value that marks the end of a list of values.

Which operator is used first?

The first and most important rule is called operator precedence. Operators in an expression that have higher precedence are executed before operators with lower precedence. For example, multiplication has a higher precedence than addition.

When the final value of an expression is assigned to a variable?

Rule 3: When the final value of an expression is assigned to a variable, it will be converted to the data type of that variable.

How many case labels would a switch statement require to be equivalent to the following if statement?

In a switch case statement a ‘ case ‘ is equivalent to an ‘ if ‘ statement and the ‘default’ is equivalent to an ‘ else ‘ statement. Since the given code block has only one if – else pair therefore, the switch case statement will consist of only two labels.

When a program uses the SETW manipulator?

When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive. In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision. The fixed manipulator causes a number to be displayed in scientific notation.

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Which statement will read an entire line of input from the keyboard into the following string object?

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Question Answer
Which statement will read an entire line of input into the following string object? string address; getline(cin, address);
When a variable is assigned a number that is too large for its data type, it: overflows

What is the value of number after the following statements execute INT number number 18 4 2?

comp sci

Question Answer
Of the following, which is a valid C++ identifier? all of the above
What will the value of x be after the following statements execute? int x; x = 18 % 4; 2
Escape sequences are always stored internally as a single character. true

Which one of the following is the not equal operator?

Equality operators: == and!= The result type for these operators is bool. The equal -to operator ( == ) returns true if both operands have the same value; otherwise, it returns false. The not – equal -to operator (!= ) returns true if the operands don’t have the same value; otherwise, it returns false.

Is operator precedence and associativity are same?

Operator precedence determines which operator is performed first in an expression with more than one operators with different precedence. Operators Associativity is used when two operators of same precedence appear in an expression. Associativity can be either Left to Right or Right to Left.

Does the preprocessor executes after the compiler?

The preprocessor executes after the compiler. If you do not follow a consistent programming style, your programs will generate compiler errors. T. Floating point constants(e.g., 29.6) are stored in memory as doubles.

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