Computer Programming Chapter 4 Review
Flag
A boolean variable that signals when some expression exists in a program
True or False
A flag may have the values
True
A local variable's scope always ends at the closing brace of the block of code in which it is declared
True
An important style rule you should adopt for writing if statements is to write the conditionally executed the statement on the line after the if statement
False
An important style rule you should follow when writing if statements is to line up the conditionally executed statement with the if statement
True
Because the && operator performs short-circuit evaluation, your boolean expression will usually execute faster if the sub-expression most likely false expression is on the left
True
Because the || operator performs short-circuit evaluation, your boolean statement will generally run faster if the sub-expression that is most likely to be true is on the left
Block of Statements
Enclosing a group of statements inside a set of braces creates a
Unicode Character Code
In Java, when a character is stored in memory, it is actually as a(an)
False
In a switch statement, if 2 different values for the CaseExpression would result in the same code being executed, you must have 2 copies of the code
The statement or block following the else statement is executed
In an if/else statement, if the boolean expression is false, then
Relational Operators
Operators that are used to determine whether a specific relationship exists between 2 values
if
The ______ statement is used to make simple decisions in Java
True or False
The expression in an if statement must evaluate to
True
The if/else statement will execute one group of statements if its boolean expression is true or another group if its boolean expression is false
True
Unicode is an international encoding system that is extensive enough to represent ALL the characters of ALL the world's alphabets
False
When testing for character values, the switch statement does not test for the case of the character
False
When two Strings are compared using the compareTo method, the cases of the two Strings are not considered
