Question 1

What is Java used for ?

Accepted Answer

Java is used to develop mobile apps, web apps, desktop apps, games and much more.

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Question 2

What is the line of code that needs to be used to print a message in Java ?

Accepted Answer

System.out.println("message");

Answer

System:out:Println("message");

Answer

system.out.println("message");

Question 3

What is a for loop ?

Accepted Answer

For loop in Java iterates a given set of statements multiple times.

Answer

A loop used to increase the indexing variable

Answer

A loop that uses the word for

Question 4

What is te for loop used for ?

Accepted Answer

To repeat a block of code as much times as it is stablished

Answer

To run a certain part of the code

Answer

To add one number in value to the indexing variable

Answer

To call a function

Question 5

What is the correct synthax to apply the for loop

Accepted Answer

for(i =1;i=20;1++){

}

Answer

for(i =1;i=20;1++);

Answer

for(i =1,i=20,1++)(

)

Answer

for(i =1:i=20:1++){

}

Question 6

What is the string variable used for ?

Accepted Answer

To store text

Answer

To store a number

Answer

To store a decimal number

Answer

To store True or False

Answer

To store a single character

Question 7

What is the int variable used for ?

Accepted Answer

To store a number

Answer

To store True or False

Answer

To store text

Answer

To store a single character

Answer

To store a decimal number

Question 8

What is the boolean variable used for ?

Accepted Answer

To store True or False

Answer

To store a decimal number

Answer

To store text

Answer

To store a single character

Answer

To store a number

Question 9

What is the float variable used for ?

Accepted Answer

To store a decimal number

Answer

To store text

Answer

To store a number

Answer

To store a single character

Answer

To store True or False

Question 10

What is the char variable used for ?

Accepted Answer

To store a single character

Answer

To store a number

Answer

To store a decimal number

Answer

To store text

Answer

To store True or False

Question 11

What is the correct synthax to create a variable

Accepted Answer

type variableName = value;

Question 12

Is Java owned by Oracle ?

Accepted Answer

true

Answer

false

Question 13

What for the comments casn be used for ?

Accepted Answer

Make it more readable

Question 14

How can we make single line comments ?

Accepted Answer

Any text between // is ignored by Java

Question 15

What is Java Math ?

Accepted Answer

Math contains methods for performing basic numeric operations

Question 16

What are some of the methods that we can use (talking about Java Math)?

Accepted Answer

Math.max(x,y)

Question 17

What can we used Random Numbers for ?

Accepted Answer

To generate a random number

Answer

To generate a random number in between certain range

Answer

To generate multiple random numbers

Question 18

What can we used Math.abs(x) for ?

Accepted Answer

To return the absolute (positive) value

Answer

To return the absolute (negative) value

Answer

To return the absolute (without decimals) value

Question 19

What can we used Math.max(x,y) for ?

Accepted Answer

To return the maximun value

Answer

To give the maximun value capable

Answer

To give the minimun value capable

Question 20

What can we used Math.sqrt(x) for ?

Accepted Answer

To return the square root

Answer

To return the value times two

Answer

To return the number elevated to the square

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