Programming and Problem Solving with Java

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System.out.println(“Price is “+ price + “Cost is “+ cost);

System.out.println(“Grade “+ ch + “ costs “);

System.out.println(cost);

}

}

7.Translate the following Java code into algebraic notation. (All variables are
doublevariables.)
y = -b + Math.sqrt(b b – 4.0 a * c);

8.Given the code fragment:

int i;

int j;

doublez;

i = 4 ;

j = 17 ;

z = 2.6;

determine the value of each of the following expressions. If the result is a float-

ing-point value, include a decimal point in your answer.

a.i / (double)j

b.1.0/ i + 2

c. z * j

d.i + j % i

e.( 1 / 2 ) * i

f. 2 * i + j – i

g.j / 2

h. 2 * 3 – 1 % 3

i. i % j / i

j. (int)(z + 0.5)

9.Evaluate the following expressions. If the result is a floating-point number,
include a decimal point in your answer.
a.Math.abs(–9.1)
b.Math.sqrt(49.0)
c. 3 (int)7.8+ 3
d.Math.pow(4.0, 2.0)
e.Math.sqrt((double)( 3 3 + 4 * 4 ))
f. Math.sqrt(Math.abs(–4.0) + Math.sqrt(25.0))