Starting Out With Java: Chapter 3

Front 1

How many ways can we decide something?

Back 1

One way, or two ways.

Front 2

What can we use to determine a decision?

Back 2

If constructs, or Switch constructs.

Front 3

What are the arguments of an ‘if’ statement?

Back 3

The condition is the argument.

Front 4

What is an ‘else’ statement used for?

Back 4

The ‘else’ statement is used to execute a different statement if the condition in the ‘if’ statement is false.

Front 5

What are RELOPS?

Back 5

Relational Operators:

Front 6

List some RELOPS.

Back 6

> greater than
>= greater than or equal to
<= less than or equal to
< less than
== equal to
!= not equal to

Front 7

If we use Conditional Statements in Java what is needed?

Back 7

Logical operators are needed to ‘connect’ each condition.

Front 8

List some Logical Operators.

Back 8

! NOT Reverses the current evaluation
&& AND Both conditions must be true for the eval. to be true
|| OR At least one condition must be true for the eval. to be true.

Front 9

What is the only way an evaluation is TRUE with the && logic operator?

Back 9

Both conditions must be true.

Front 10

What is the only way an evaluation is FALSE with the || logic operator?

Back 10

Both conditions must be false.

Front 11

What is the most used/preferred data type when using logic operators?

Back 11

Boolean

Front 12

Including the math operators, relops, and logic operators, what is the order or priority?

Back 12

1. ()
2. !
3. *, /, %
4. +, -
5. <, <=, >, >=
6. == !=
7. &&
8. ||

Front 13

Should you group like ‘if’ and ‘else’ statements?

Back 13

Yes, it is considered good software engineering practice to group ‘if’ and ‘else’ statements.

Front 14

What is a Switch Construct and why should you use it?

Back 14

Another way to make multiple decisions besides complex conditionals and nesting. It can be used when the variable being tested is an int or a char data type.

Front 15

How do you represent the argument for a switch?

Back 15

switch(if condition is)
{
case 1:
statement;
break;
}

Front 16

Is there something needed to stop each section of a switch?

Back 16

Yes, you need to stop each section with a ‘break’.

Front 17

What is the default used for?

Back 17

It tells the system what to do if there is no matching case.

Front 18

What are local variables?

Back 18

Variables that are only used inside the method in which they have been declared.

Front 19

Where should we declare them?

Back 19

At the beginning of the method.