Page 57 - CTS - CSA TP - Volume 2
P. 57

COMPUTER SOFTWARE APPLICATION - CITS



           EXERCISE 86 : Use the switch statement



            Objectives

           At the end of this exercise you shall be able to
           •  know the syntax of  switch statement and its use
           •  develop Java programs using switch statement.

           Requirements


           Tools/Materials
           •   PC/Laptop with Window OS
           •   JDK Software
           •  Text editor (Visual studio / Sublime  / Note pad)


           Procedure

           A switch statement in Java provides an alternative way to express a multi-branch decision based on the value
           of an expression. It’s often used when you have a single variable or expression whose value needs to be tested
           against multiple conditions.
             switch (expression) {
               case value1:
                   // Code block executed if expression equals value1
                   break;
               case value2:
                   // Code block executed if expression equals value2
                   break;
               // Additional cases as needed

               default:
                   // Code block executed if expression doesn’t match any case
                   break;
           }
           TASK 1: Select an option using a switch statement
           import java.util.Scanner;
           public class SimpleMenu {
           public static void main(String[] args) {
           Scanner scanner = new Scanner(System.in);
           System.out.println(“Select an option:”);
           System.out.println(“1. Print Hello”);

           System.out.println(“2. Print World”);
           System.out.println(“3. Exit”);
           int choice = scanner.nextInt();
           switch (choice) {
           case 1:
           System.out.println(“Hello”);



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