1. What is the difference between the // comment notation and the /* */ comment notation? 2. What is the purpose of the javadoc utility? Give an example of a javadoc comment. 3. What primitive data...

1. What is the difference between the // comment notation and the /* */ comment notation?

2. What is the purpose of the javadoc utility? Give an example of a javadoc comment.

3. What primitive data type would you use to represent the most precise real number?

4. Write a statement that displays the label “Sales tax:” and appends the calculated value from the previous exercise to the end of the label.