Case Control Statement

Case Control Statement: -

The statements which are used to execute only specific block of statements in a series of blocks are called case control statements.

Types of Case control statements: -

There are four types of case control Statements

a) Switch                                 b) Continue                

c) Break                                             

1) Switch: -

Switch statement is used to execute only specific case statements based on the switch expression.

Syntax:-

switch (expression)
{
case 1:   

statement 1;
break;
case 2:

statement 2;
break;
default: 

statement 3;
break;

}

Write a program to print Days of week using switch :-

import java.util.Scanner;

class switch1

{

public static void main(String args[])

{

int n;

Scanner in = new Scanner(System.in);

System.out.println("Enter the number 1 to 7");

n = in.nextInt();

switch(n)

{

case 1:

System.out.println("Sunday");

break;

case 2:

System.out.println("Monday");

break;

case 3:

System.out.println("Tuesday");

break;

case 4:

System.out.println("Wednesday");

break;

case 5:

System.out.println("Thusday");

break;

case 6:

System.out.println("Friday");

break;

case 7:

System.out.println("Saturday");

break;

default:

System.out.println("WRONG ENTER");

break;

}

}

}

OUTPUT:- Enter the number 1 to 7

4

Wednesday

Example 2: -

Write a program to print sum, sub and muliply using switch

import java.util.Scanner;

class switch1

{         

public static void main(String args[])

{

int n,a,b,c;

Scanner in = new Scanner(System.in);

System.out.println("Chosse 1 for sum \n 2 for subtract \n 3 for multiply \n 4 for exit");

n = in.nextInt();

switch(n)

            {

                        case 1:

                                    System.out.println("Enter the two numbers for sum ");

                                    a = in.nextInt();

                                    b = in.nextInt();

                                    c = a+b;

                                    System.out.println("Sum = "+c);

                        break;

                        case 2:

                                    System.out.println("Enter the two numbers for sub ");

                                    a = in.nextInt();

                                    b = in.nextInt();

                                    c = a-b;

                                    System.out.println("Sub = "+c);

                        break;

                        case 3:

                                    System.out.println("Enter the two numbers for sub ");

                                    a = in.nextInt();

                                    b = in.nextInt();

                                    c = a*b;

                                    System.out.println("Multiply = "+c);

                        break;

                        case 4:

                        break;

                        default:

                                    System.out.println("unknown number ");

            }

}

}

OUTPUT:-

Continue, Break in Java

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