Condition in an if-else statement

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Condition in an `if-else` statement

The condition in an if-else statement can be an arbitrary expression of type boolean, for example:

a variable of type boolean;

Example:

boolean finished;
...
if (finished)
  ...

one of the comparison operators (==, !=, >, <, >=, or <=) applied to variables (or expressions) of a primitive type;
Example:
```
int a, b, c;
...
if (a > b + c)
  ...
```
a call to a predicate (i.e., a method that returns a value of type boolean);
Example:
```
String answer;
...
if (answer.equalsIgnoreCase("YES"))
  ...
```
a complex boolean expression, obtained by applying the boolean operators !, &&, and || to simpler expressions;
Example:
```
int a, b, c, d;
String answer;
...
if ((a > (b+c)) || (a == d) && !answer.equalsIgnoreCase("YES"))
  ...
```

Next: The if variant Up: Unit 05 Previous: The if-else statement