AP CS A Quiz 01: Data Types & Variables

Which one is correct?

• public static main(Strings[] args) { }

• public private static main(Strings[] args) { }

• public static void main(Strings[] args) { }

• public void static main(Strings[] args) { }

(=) sign means

• equals and it is used for math problems in Java

• assignment operator. It used to assign a value

Which one is used for remainder in Java?

• /

• %

• +

• *

int x = 3; in this case, which of the following statement is true?

• x = x+1;

• x++;

• x += 1;

• All of above

This data type returns true or false

• String

• boolean

• char

• int

Name the data type: 1.0

• double

• int

• char

• boolean

What data type would you use for storing the average test score in a class?

• boolean

• char

• int

• double

How would you declare a variable storing the tax rate?

• int taxRate = 5.1;

• taxRate = "5.1";

• double taxRate = 5.1;

• double taxRate = "5.1";

How would you declare a variable that tells you that someone passed a class?

• boolean passed = 'true';

• boolean passed = true;

• passed = true;

• String passed = "true";

Name the data type: '3'

• int

• char

• String

• None of the above