Skip to main content\(
\newcommand{\lt}{<}
\newcommand{\gt}{>}
\newcommand{\amp}{&}
\definecolor{fillinmathshade}{gray}{0.9}
\newcommand{\fillinmath}[1]{\mathchoice{\colorbox{fillinmathshade}{$\displaystyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\textstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptscriptstyle\phantom{\,#1\,}$}}}
\)
Section 4.4 Selection-WE2-P1
Subgoals for Evaluating Selection Statements.
Diagram which statements go together
For if statement, determine whether expression is true or false
If true ߝ follow true branch, if false ߝ follow else branch or do nothing if no else branch
Subsection 4.4.1
Each question below is independent, but they all use this given setup
int alpha = 2, beta = 1, delta = 3, eta = 0, gamma = 0;
double omega = 2.5, theta = -1.3, kappa = 3.0, lambda = 0.0, rho = 0.0;
Exercises Exercises
1.
Q6: What is the output of the following code?
int x = 0;
if (x = 0) /* look closely! */
System.out.println("0 is true");
else
System.out.println("0 is false");
0 is true
0 is false
There is no output because a compiler error occurs
There is no output because an exception occurs
2.
Q7: What is the output of the following code?
if (false)
System.out.println("it is true");
else
System.out.println("it is false");
it is true
it is false
There is no output because a compiler error occurs
There is no output because an exception occurs
3.
Q8: What is the output of the following code?
if (12 < 12)
System.out.println("Never");
else
System.out.println("Always");
Never
Always
There is no output because a compiler error occurs
There is no output because an exception occurs
4.
Q9: What is the output of the following code?
double var1 = 15.0;
double var2 = 25.12;
if (2 * var1 >= var2)
System.out.println("O.K.");
else
System.out.println("Not O.K.");
O.K.
Not O.K.
There is no output because a compiler error occurs
There is no output because an exception occurs
You have attempted
of
activities on this page.