3. if-else statement

• The syntax of the if-else statement is

  
      if ( booleanExpression ) { statements }
      [else if ( booleanExpression ) { statements }]<sub>optional</sub> ...
      [else {statements}]<sub>optional</sub>
  
  

• The if statements compare primitive data types in a boolean expression

• Boolean expressions are enclosed in parentheses and use relational operators