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P. 75

The syntax of the if statement is as follows:
                                                                                                 Start
                 if (< conditional expression >)
                 {
                        [statements]

                 }
                                                                                             Conditional        False
                 For example,                                                                 Expression

                 public class IfStatement

                 {
                                                                                                     True
                       public static void main(int num)
                                                                                               Body of if
                       {
                            System.out.println("Entered number is: " + num);

                            if (num % 2 == 0)
                                                                                                 Stop
                            {

                            System.out.println("The number is even");                       Flowchart of 'if' statement

                            }
                            System.out.println("Statement outside the if statement");

                       }
                 }


                 Run the  program  twice  for  values of 22 and  7,
                 respectively. When you enter 22, the condition (22 %
                 2 == 0) returns true. So, the statement inside the body
                 of the if statement gets executed and the output will

                 appear as shown:
                 When you enter the value 7, then the output will

                 appear as shown:

                 Since the  condition  (7  % 2 == 0)  returns  false, the
                 statement  inside the  body  of  the  if statement  does
                 not get executed and only the statement outside the
                 if statement gets executed.

                 The if…else Statement

                 The if…else statement is used to execute either of the blocks of statements from if or else
                 statements. When the condition next to the if keyword evaluates to true, the statement(s)

                 inside the if block will be executed. Otherwise, the statement(s) inside the else block will be
                 executed.



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                                                              Conditional, Looping and Jumping Statements in Java
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