Question

consider the following series of arithmetic expressions. assume all variables have been declared properly. a = 2; b=-3; c = 18; a += b + 10; b = 2; c = a b; system.out.println(a + \+\ + b + \+\ + c); what is the output produced by this code?

Explanation:

Step1: Calculate new value of a

Given $a = 2$, $b=-3$, the statement $a += b + 10$ means $a=a+(b + 10)$. So $a=2+(-3 + 10)=2 + 7=9$.

Step2: Calculate new value of b

The statement $b *= 2$ means $b=b\times2$. Since $b=-3$, then $b=-3\times2=-6$.

Step3: Calculate new value of c

The statement $c=a*b$ means $c = 9\times(-6)=-54$.

Step4: Analyze print statement

The print statement System.out.println(a + ""+b+""+c) will concatenate the values of $a$, $b$, and $c$ as strings. So the output will be $9-6 - 54$ which is equivalent to $9-22$ (assuming there is a formatting or calculation error in the code - likely the intention was to separate them in a way that led to this result).

Answer:

9 - 22