Page 198 - ComputerScience_Class_11

28 break;
29 case 2:
30 System.out.println("The choice is 2");

31 break;
32 case 3:
33 System.out.println("The choice is 3");

34 break;
35 default:
36 System.out.println("Wrong choice");

37 break;
38 }
39 }

40 }
The output of the preceding program is as follows:

BlueJ: Terminal Window - Java
Options

Enter number ch1 and character ch2
1
B
The choice is B

BlueJ: Terminal Window - Java
Options

Enter number ch1 and character ch2
2
B
Choice is 2

Difference between if statement and switch statement:
if statement switch statement
The flow of control is bidirectional. The flow of control is multidirectional, i.e., depending
on the user’s choice.
All kind of relational operators are used in the test Only int, char and string data type value is used in the
condition. expression.
Any type of data type can be used for the variables Only int, char and string data types are used for the
used in the test condition. variables used in the test condition.

8.4.3 Iterative Statements
Sometimes, we may require to repeat certain lines of the program according to the logic or need of the program.
A programming language like Java allows the statements to repeat a specified number of times. This repetitive flow of
control in a program is called a loop and the repetitive statements are called iterative statements. The loop is used to
execute a certain number of lines again and again to get the desired result.

196 Touchpad Computer Science (Ver. 3.0)-XI