Question $1$

In Java, case and switch are reserved words, but break is not a reserved word.

T

True

F

False

Question $2$

$\text{'}$A$\text{'}<\text{'}$a$\text{'}$ && $4<=8||2\mathrm{.}5>=7||4<$ y

Based on the code above, which part of the expression is not evaluated?

$2\mathrm{.}5>=7$

$4<$ y

$2\mathrm{.}5>=7||4<$ y

$4<=8$

Question $3$

Which of the following is NOT a relational operator in Java?

$<>$

$<=$

$==$

$>$

Question $4$

$\text{'}$A$\text{'}<\text{'}$a$\text{'}$ && $4<=8||2\mathrm{.}5>=7||4<$ y

What is the value of the expression above?

true

false

x

It cannot be determined.

Question $5$

Including a semicolon before the action statement in a one$-$way selection causes a syntax error.

T

True

F

False

Question $6$

Suppose str$1$ and str$2$ are String variables. The expression $($str$1==$ str$2)$ determines whether str$1$ and str$2$ point to the same String object.

T

True

F

False

Question $7$

Which of the following will cause a syntax error?

$(10<$ num$)$ && $($num $<30)$

$10<$ num $<20$

$10<$ num && num $<25$

num $>10$ && num $<40$

Question $8$

The symbol $>=$ is a logical operator.

T

True

F

False

Question $9$

Suppose that you have the following code:

int sum $=0$;

int num $=8$;

if $($num $<0)$

sum $=$ sum $+$ num;

else if $($num $>5)$

sum $=$ num $+15$;

After this code executes, what is the value of sum?

$0$

$8$

$15$

$23$

Question $10$

A computer program will recognize both $=$ and $==$ as the equality operator.

T

True

F

False

Question $11$

The operators $=$ and $==$ have the same order of precedence.

T

True

F

False

Question $12$

Suppose x $=10$ and y $=20.$ The value of the expression $(($x $>=10)$ && $($y $<=20))$ is true.

T

True

F

False

Question $13$

Which of the following will cause a syntax error, if you are trying to compare x to $5?$

if $($x $==5)$

if $($x $=5)$

if $($x $<=5)$

if $($x $>=5)$

Question $14$

$=!$ is a relational operator.

T

True

F

False

Question $15$

What does $>=$ mean?

less than

greater than

less than or equal to

greater than or equal to

Question $16$

The execution of a break statement in a switch statement terminates the switch statement.

T

True

F

False

Question $17$

Which of the following is a relational operator?

$=$

$==$

$!$

&&

Question $18$

In Java, $!,$ &&$,$and $||$ are called logical operators.

T

True

F

False

Question $19$

If str$1$ is $$Hello$$ and str$2$ is $$Hi$,$ which of the following could not be a result of str$1.$compareTo$($str$2)$;$?$

$-9$

$-5$

$-1$

$1$

Question $20$

int x;

x $=(1<=3$ && $\text{'}$K$\text{'}>=\text{'}$F$\text{'})?5$ : $12$

Based on the code above, what is the value of x$?$

$1$

$3$

$5$

$12$