Chapter 3.2, Problem 15SCP

Explanation of Solution

Result of each given expression:

Line number	Expression	Result
1	double grade= 2 . 7 ;
2	Math . round(grade) ;	grade=2.7
3	grade= Math.round(grade);	grade=3.0
4	double min=Math.min(grade,Math.floor(2.9));	min=2.0
5	double x = Math.pow(2, 4) ;	x=16.0
6	x = Math . sqrt(64) ;	x=8.0
7	int count = 25;
8	Math . sqrt(count) ;	count=25
9	count= (int) Math . sqrt(count) ;	count=5
10	int a=Math . abs(Math . min( - 1, -3));	a=3

Explanation:

• The variable “grade” of type “double” is initialized with the value “2.7” in line number “1”.
• The value of “grade” in line number “2” is “2.7”.
• The value of “grade” in line number “3” is replaced with the values of “3.0” using “=” operator and the value “3.0” is obtained by calling the method “round()” from “Math” module.
• In line number “4”, the expression “Math...