Answer:
C
Explanation:
Predicate methods typically test a condition and do not modify the object on which they're called.
Answer:
A lot can happen, depending on the use of the variable
Explanation:
Lets create a position variable, a common variable in games.
Vector3 position = new Vector3(0, 0, 0);
The above variable initialization creates a new Vector3 object. The Vector3 class contains 3 properties, X, Y, and Z. When you assign the variable 'position' the new Vector3 object, the variable 'position' contains an instance of Vector3 where
X = 0,
Y = 0,
and Z = 0.
The variable 'position' can be used to set the position of a player, or an object.
We can reuse this variable when you want the object or player to move.
position.X = 29
position.Y = -14
position.Z = 47
now the object/player's position is (29, -14, 47).
Variables can be used for basically everything you need in programming, from storing a position, to storing the result of a complex math equation.
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Answer:
They are both ways to identify assets (e.g., persons, animals, objects).
Explanation:
A barcode is a bit of information (usually a number) printed as a line or block pattern on a surface (e.g., a sticker).
An RFID is a bit of computer memory with an antenna.
Both can be read with the appropriate scanner device.
Answer:
\n
Explanation:
readline() method is used to read one line from a file. It returns that line from the file.
This line from the file is returned as a string. This string contains a \n at the end which is called a new line character.
So the readline method reads text until an end of line symbol is encountered, and this end of line character is represented by \n.
For example if the file "abc.txt" contains the lines:
Welcome to abc file.
This file is for demonstrating how read line works.
Consider the following code:
f = open("abc.txt", "r") #opens the file in read mode
print(f.readline()) # read one line from file and displays it
The output is:
Welcome to abc file.
The readline() method reads one line and the print method displays that line.
