Java Week 3

Question 1

This is the where we tell Java to treat a variable as a different data type.

Accepted Answer

Type Casting

Question 2

Single line comments begin with this

Accepted Answer

//

Question 3

This data type holds one character

Accepted Answer

char

Question 4

Which of these can hold data after the decimal point in a number.

Accepted Answer

double

Question 5

A variable (in Java) should be . . .

Accepted Answer

a word that describes the data

Question 6

Which character sequence would cause following text to be on the next line?

Accepted Answer

Question 7

How many mathematical operands are there for integer math?

Accepted Answer

5

Question 8

This can hold numbers up to approximately 2 Billion

Accepted Answer

int

Question 9

Which of these correctly declares and initializes a String Variable?

Accepted Answer

String name = "Mr. Poore"

Question 10

These are words you can't use for your variables because Java uses them at it's core.

Accepted Answer

Java Keywords, Reserved Words

Question 11

Which of these would change the num variable to num/10

Accepted Answer

num/=10

Question 12

Multiline comments begin with this

Accepted Answer

/*

Question 13

Java follows correct mathematical precedence (Order of Operations)

Accepted Answer

True

Question 14

Which of these would add one to the variable k?

Accepted Answer

++k, k++

Question 15

This data type can hold integers up to 127

Accepted Answer

byte

Question 16

This mathematical operand returns the remainder of dividing two numbers.

Accepted Answer

%

Question 17

Which is the output for System.out.println("100" + "200");

Accepted Answer

100200

Questions 17