CSCI 151 - Lab 1 - CodingBat

CSCI 151 - Lab 1


This week, you will use the website CodingBat to learn Java syntax and structure.


Your are allowed to work with a partner for this lab. If you work with a partner, be sure that you:


Step 1

Go to CodingBat and click on "create account" in the top right. Use your Hendrix email as your account id, and choose a password. Fill in your name. If creating a joint account with a partner, fill in both your names. You must fill in your name and/or your partner's name in order to get credit for the lab.

Step 2

Important: you must do this step to get credit for the lab. Once you are logged in, click on "prefs" in the top right. In the box at the bottom labelled "Share To", fill in the Hendrix email address of your lab instructor (, then click "Share". This will allow your instructor to see your progress.

Step 3

Click on Warmup-1 in the Java section of CodingBat. Click on sleep_in. Read the description of the desired function behavior, and fill in a suitable function definition. Note that unfortunately, CodingBat does not like it if you use the Tab key. You will have to use spaces to indent your code. Once you have filled in a definition for the function, click "Go". CodingBat will automatically run your function on a number of test inputs and check whether it has the required behavior. If your function passes all the tests, you will get a big green check mark, and you can move on to the next problem. Otherwise, the failing tests will be highlighted in red; fix your function and try again.

You should go on to complete five problems in Warmup-1.

Step 4

Continue to complete the problems described below in the grading section.

Academic Integrity

You must write the solutions by yourself, or with your partner if working together. You may ask other students for advice, but remember that Evidence of any of the above will be treated as a potential violation of the Hendrix Academic Integrity Policy.

What to Hand In

You do not need to hand anything in. If you have shared your account with your lab instructor as described in Step 2 above, your instructor will be able to see your progress.


© Mark Goadrich, Hendrix College