Java Terms

Question 1

confirm()

Answer 1

user must respond to questions (cancel or ok)

Question 2

prompt

Answer 2

user must type an answer

Question 3

strings

Answer 3

a string of letters or number between quotations (“Michael”)

Question 4

.length

Answer 4

after a string, this command will tell you the length of the string

Question 5

boolean

Answer 5

a code that is either ‘true’ or ‘false’

Question 6

console.log()

Answer 6

printing out, will take whatever is in the () and log it to the console

Question 7

if statement

Answer 7

if the condition is true, the code in the { } will run

Question 8

if { } else { }

Answer 8

If the condition is true: run code, else (otherwise): run this code instead

Question 9

modulo %

Answer 9

The computer will divide the numbers between the modulo % and return the remainder.

For example: 23 % 10 = 3

Question 10

.substring(x,y)

Answer 10

logs the string between the two given points (x,y)

For Example: “Hello”.substring(0,2)

Logs: “He”

Question 11

var myAge = 35

Answer 11

you can declare a variable to be called up anytime

variables can be changed in the algorithm

Question 12

var myCountry = “USA”

console. log(myCountry.length);
console. log(myCountry.substring(0,4));

Answer 12

This would print out the following:

3

USA

Question 13

comparisons

Answer 13

=>

<=

===

<

>

Question 14

var someName = function (something)

{};

Answer 14

creates a variable (someName)

and an input for the function (parameter)

{input and code to run};

(must end with a semi colon ;)

Question 15

parameter

Answer 15

the placehoder in a function for an input

Question 16

sayHello(“Michael”)

Answer 16

Calling a function requires the variable associated with the function as well as the paramerter input.

Question 17

return (an output of a function)

Answer 17

you can return a number inside a function which will be used in another line of code as in:

var someNumber = fucntion(number)

{return number *8};

var newNumber = someNumber(9)

console.log (newNumber)

Question 18

for loops

Answer 18

for (i = x; i < x; i++)

increment up by 1 i++

increment down by 1 i–

increment up by any value +=

increment down by any value -=