Important Notice:

Practice-It will be discontinued as of November 1st, 2024. After this date, the website will remain online for a transitional period, but login will be restricted to University of Washington NetID authentication. This marks the next phase towards the platform's full retirement. Thank you for your use and support of the application over the years.

If you are looking for an alternative, a similar tool, CodeStepByStep, was developed independently by the original author of Practice-It, and is available at codestepbystep.com**

logo Practice-It logo

BJP5 Self-Check 3.15: mathExpressions2

Language/Type: Java expressions Math variables
Author: Marty Stepp (on 2019/09/19)

Write the result of each expression. Assume that each expression follows the ones before it, so that the code on a previous line affects what would happen on the next line. Note that a variable's value changes only if you reassign it using the = operator. (Make sure to write a value of the proper type, such as 12.0 rather than 12 for a double.)

double grade = 2.7;
Math.round(grade);                                // a) grade =
grade = Math.round(grade);                        // b) grade =

double min = Math.min(grade, Math.floor(2.9));    // c) min =

double x = Math.pow(2, 4);                        // d) x =
x = Math.sqrt(64);                                // e) x =

int count = 25;
Math.sqrt(count);                                 // f) count =
count = (int) Math.sqrt(count);                   // g) count =

int a = Math.abs(Math.min(-1, -3));               // h) a =
a) grade =
b) grade =
c) min =
d) x =
e) x =
f) count =
g) count =
h) a =

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.