Java Data Types Practice

Front

What type should you use to represent the average grade for a course? Options: int, double, boolean, String

Back

double

Answer explanation

The average grade can be a decimal thus a floating point number is needed. double meets this requirement

Tags

data types

java language fundamentals

Front

Declare a double variable named gpa

Back

double gpa;

Tags

java language fundamentals

data types

Front

What type should you use to represent the number of people in a household? Options: String, double, int, boolean

Back

int

Tags

java language fundamentals

data types

Front

What type should you use to hold the first name of a person?

Back

String

Tags

data types

java language fundamentals

Front

Declare an int named studentCount and initialize it to 46. Follow the style of using one space before and after the equal sign.

Back

int studentCount = 46;

Tags

data types

java language fundamentals

Front

What type should you use to record if it is raining or not? Options: boolean, int, String, byte

Back

boolean

Answer explanation

In Java, to record if it's raining or not, use the boolean data type. It can be true (it's raining) or false (it's not raining).

Tags

java language fundamentals

data types

Front

Declare in boolean variable isRaining and initialize it to true

Back

boolean isRaining = true;

Tags

java language fundamentals

data types