Question

Assume the following variable declaration exists in a program: double number $=123.456$ Write a statement that uses system. out.printf to display the value of the number variable padded with leading zeros, in a field that is eight spaces wide, rounded to one decimal place. (Do not use comma separators.)

Short answer

Question: Given a variable "number", write a Java code snippet to display the value of the variable with the formatting requirements mentioned in the analysis. Answer: ```java System.out.printf("%08.1f", number); ```

Step-by-step solution

Round the number to one decimal place

To round the number to one decimal place, we can use "%.1f" in the format specifier of the system.out.printf function. This will ensure that the decimal portion of the number is displayed only up to one decimal place.

Set the field width to eight spaces

To set the width of the field, we can add the width (8) before the format specifier. So the format specifier becomes "%8.1f".

Add padding with leading zeros

To add leading zeros to the number, we can replace the space character in the format specifier with '0'. Now the format specifier becomes "%08.1f".

Write the statement using system.out.printf

Now that we have the correct format specifier, we can write the statement using system.out.printf as follows: ```java System.out.printf("%08.1f", number); ``` This statement will display the value of the variable 'number' as per the specified requirements.