Problem:

Question 1: Write one Java statement to display the string "The average is xxx" to the console, where the xxx displays the value from the double variable sum divided by 3. Make sure the value is displayed with 3 digits following the decimal point.

Question 2: Write one Java statement to create a string containing "The average is xxx" where the xxx contains the formatted value from the double variable sum divided by 3. Make sure the formatted string contains only 2 digits following the decimal point. Store the formatted string into a String variable called str.

Question 3: Explain the difference between an object reference in Java and an object. Use an example to illustrate your answer.

Any help would be greatly appreciated!