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SWITCH STATEMENT IN JAVA

Khushi A.
02/05/2019 0 1

switch statement - condition statement - only once the checking takes place so we recommend use break statement.

switch(condition/variable/choice)
{
case 1:
//statements
break;
case 2:
// statements
break;
case 3:
//statement
break;
case 4:
//statement
break;

default:
//statement
break;

}

 

EXAMPLE  

WE ARE CREATING A MENU DRIVEN PROGRAM OF CALCULATOR

import java.util.*;

public class CalculatorSwitch
{
public static void main(String agr[])
{
int a,b,c;
char ch;
Scanner sc = new Scanner(System.in);
System.out.println("enter two number");
a = sc.nextInt();
b = sc.nextInt();
System.out.println("You have following choice to manipulate data, press the symbol as given below");
System.out.println("+ : Addition");
System.out.println("- : subtraction");
System.out.println("* : multiply");
System.out.println("/ : divide");
System.out.println("% : modulus");
System.out.println("^ : power");
ch = sc.next().charAt(0);

switch(ch)
{
case '+':
c= a+b;
System.out.println("Added = "+c);
break;
case '-':
c = a-b;
//c= a+b;
System.out.println("subtarct = "+c);
break;

case '*':
c= a*b;
System.out.println("Multiply = "+c);
break;

case '/':
c= a/b;
System.out.println("Divide = "+c);
break;
case '%':
c= a%b;
System.out.println("remainder = "+c);
break;
case '^':
c= a^b;
System.out.println("power= "+c);
break;
default:
System.out.println("Worng choice");
break;
}

}

 

OUTPUT

enter two number
4732
773
You have following choice to manipulate data, press the symbol as given below
+ : Addition
- : subtraction
* : multiply
/ : divide
% : modulus
^ : power
-
subtarct = 3959

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Khushi A. | 10/07/2019

Break statement allows to terminate the code from the very next line. If we do not use break after very code then consecutive cases will also get executed without checking further, untill break statement or cases end up.

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