Your Turn
- Write program code to complete the provided tasks.
- Run the code in the Java Program to see if your code generates the desired result.
- Make necessary changes until you have satisfied the tasks.
Practice 1: Enter a Positive Number
- Write a
do..while loop that will repeatedly generate and print a random number between 1 and 12 until the number 7 is generated.
- Try the code in the Java Playground.
Practice 2: Drink Order
- A drink cost $3 and an order consists of at least 1 drink.
- Write a
do..while loop that will repeatedly generate and print a random number between 0 and 1 to indicate whether another drink will be ordered. If a 1 is entered another drink is added to the order, otherwise the loop stops. After all the drinks are ordered, the number of drinks ordered and the total cost are printed.
- Try the code in the Java Playground.
Practice 3: Modify the while Loop to do..while Loop
- Run the provided code segment in the Java Playground.
- Re-write it to be a
do..while loop instead.
- Run the new code in the Java Playground to ensure you obtain the same functionality.
Using an IDE
- Complete the following practices using an IDE.
Practice 4: Multiplication Practice
- Generate two integer values between 1 and 10.
- Continuously prompt the user for the product of the two values until they enter the right answer.
- Identify test cases and outcomes that can be used to check you code segment is functioning as expected.
- Try the code in the IDE.
- Continuously prompt the user for a grade or -999 to stop. Accumulate all the grades and keep track of the number of grades entered. The value -999 is not a grade, be careful to not include it in the sum of the grades or the count of grades.
- Once all the grades have been entered, calculate and print the average.
- Identify test cases and outcomes that can be used to check you code segment is functioning as expected.
- Try the code in the IDE.
Resources
Practice: Evaluate Expressions that Contain do..while Loops