What is the command for a random integer in low <= x <= high?

(int) (Math.random() * (high - low + 1)) + low

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AP Computer Science Basics

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Basic knowledge for AP Computer Science A

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Questions 20

Answers

1
What is the command for a random integer in 1 <= x <= n?
(int) (Math.random () * n)
(int) (Math.random() * n) + 1
Math.random() + 1
Math.random()
2
Which of these loops counts from 1 to n?
for (int i = 1; i<= n; i++)
for (int i = 1; i>= n; i++)
while (int i = 1; i>= n; i++)
while (int i = 1; i<= n; i++)
3
How would you type a backslash?
//
\
\\
/
4
How would you type a new line?
\n
string.newLine()
string.new()
\newLine
5
What is the command for a random integer in 0 <= x < n ?
(int) (Math.random() )
Math.random()
(int) (Math.random() * n )
Math.random() * n
6
Which of these means "or?"
&|
||
&&
\\
7
Which of these equals "decrement n by one"
+=
--
++
-+
8
What is the default value of an integer?
1
0
null
0.0
9
Which of these means "increment n by one"
-=
+=
++
--
10
What is the command for a random integer in low <= x <= high?
(int) (Math.random() * (high - low + 1))
(int) (Math.random() * (high - low)) + low
(int) (Math.random() * (high - low + 1)) + low
(int) (Math.random() * (high - low))
11
What is the command for a random decimal in 0 <= x < n?
Math.random()
(int) (Math.random() )
Math.random() * n
(int) (Math.random () * n )
12
Which of these means "and?"
||
\\
&|
&&
13
How would you type a tab (indentation)?
string.t()
string.tab()
/t
/tab
14
How would you type a single quote?
\'
\\'
'
'\
15
What is the default value of an object?
null
DEFAULT_VALUE
0.0
0
16
What is the command for a random decimal in 0 <= x < 1.0?
(int) (Math.random() )
(int) (Math.random() * n)
Math.random()
Math.random() * n
17
What is the default value of a double?
null
0
1.0
0.0
18
Which of these loops counts from 0 to (n-1)?
for (int i = 1; i< n; i++)
while (int i = 0; i< n; i++)
for (int i = 0; i< n; i++)
while (int i = 1; i<= n; i++)
19
How would you type a double quote?
"\
"
\\"
\"
20
What is the default value of a string?
null
String
0
DEFAULT_VALUE

AP Computer Science Basics Flashcards | StudBud

AP Computer Science Basics

20 termsStudBud Administration11 plays

Basic knowledge for AP Computer Science A

Flashcards20 cardsFPractice quizPHost liveL

Questions 20

Answers

1
What is the command for a random integer in 1 <= x <= n?
(int) (Math.random () * n)
(int) (Math.random() * n) + 1
Math.random() + 1
Math.random()
2
Which of these loops counts from 1 to n?
for (int i = 1; i<= n; i++)
for (int i = 1; i>= n; i++)
while (int i = 1; i>= n; i++)
while (int i = 1; i<= n; i++)
3
How would you type a backslash?
//
\
\\
/
4
How would you type a new line?
\n
string.newLine()
string.new()
\newLine
5
What is the command for a random integer in 0 <= x < n ?
(int) (Math.random() )
Math.random()
(int) (Math.random() * n )
Math.random() * n
6
Which of these means "or?"
&|
||
&&
\\
7
Which of these equals "decrement n by one"
+=
--
++
-+
8
What is the default value of an integer?
1
0
null
0.0
9
Which of these means "increment n by one"
-=
+=
++
--
10
What is the command for a random integer in low <= x <= high?
(int) (Math.random() * (high - low + 1))
(int) (Math.random() * (high - low)) + low
(int) (Math.random() * (high - low + 1)) + low
(int) (Math.random() * (high - low))
11
What is the command for a random decimal in 0 <= x < n?
Math.random()
(int) (Math.random() )
Math.random() * n
(int) (Math.random () * n )
12
Which of these means "and?"
||
\\
&|
&&
13
How would you type a tab (indentation)?
string.t()
string.tab()
/t
/tab
14
How would you type a single quote?
\'
\\'
'
'\
15
What is the default value of an object?
null
DEFAULT_VALUE
0.0
0
16
What is the command for a random decimal in 0 <= x < 1.0?
(int) (Math.random() )
(int) (Math.random() * n)
Math.random()
Math.random() * n
17
What is the default value of a double?
null
0
1.0
0.0
18
Which of these loops counts from 0 to (n-1)?
for (int i = 1; i< n; i++)
while (int i = 0; i< n; i++)
for (int i = 0; i< n; i++)
while (int i = 1; i<= n; i++)
19
How would you type a double quote?
"\
"
\\"
\"
20
What is the default value of a string?
null
String
0
DEFAULT_VALUE