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| How To Use C++ Switch Statement Briefly Explain in Detail |
How To Use C++ Switch Statement Briefly Explain in Detail
Some Others Programming Language Switch Statement
A switch statement helps in testing the equality of a variable against a collection of values. every worth underneath comparison is understood as a case.
See the switch as a multiway branch statement. you'll shift the execution of the program to varied components that supported the worth of the expression.
Some Important Points of Switch Statement in CPP
2. Switch case value must be of switch expression type only.
3. Switch Statement does not allow variables. A switch case value must be uniquely identified. In case of duplicate value, compile-time error in switch program.
4. Switch Every case statement can have a break statement that can be used in the switch program. When start execution of the program then the cases match in the switch expression. when cases are match executed case match line then compiler break switch Statement.
5. Switch Statement case value can have a default value is optional.
Syntax of Switch Statement
switch(expression)
{
case '1':
//case one execute ;
break;
case '3':
//case three execute;
break;
default:
//no case match is default case is executed;
}
switch(expression)
{
case '1':
//case one execute ;
break;
case '3':
//case three execute;
break;
default:
//no case match is default case is executed;
}
How To Use Switch Statement in C++?
#include<iostream>
using namespace std;
int main()
{
int x=2;
switch(2)
{
case 1:
cout<<"case one executed";
break;
case 2:
cout<<"case two executed";
break;
case 3:
cout<<"case three executed";
default:
cout<<"value are not match";
}
}
*****OUTPUT*****
case two executed
The higher than parameters area unit is explained below
1. Variable: This is that the variable that comparison is to be created.
2. Case: There area unit several case statements. everyone compares the variable with a distinct worth.
3. Break This keyword prevents execution from continued to subsequent case statements.
4. Default: This is nonobligatory. It states what ought to be done, the worth of the variable failed to match any case.
Example of switch statement ATM Program
#include<iostream>
using namespace std;
int main()
{
float amt,creditamt,debitamt;
char ch;
cout<<"Enter initial Amount:";
cin>>amt;
cout<<"Enter\nC For Credit\n D For Debit\nB For Balance\n";
cin>>ch;
switch(ch)
{
case 'c':
cout<<"Enter Credit Amount:";
cin>>creditamt;
amt=amt+creditamt;
cout<<"New Amount:"<<amt;
break;
case 'd':
cout<<"Enter Debit Amount:";
cin>>debitamt;
if(amt>=debitamt)
{
amt=amt-debitamt;
cout<<"New Amount:"<<amt;
}
else
{
cout<<"Insufficient Amount";
}
break;
case 'b':
cout<<"Amount in Your Account:"<<amt;
break;
default:
cout<<"Invalid input!!";
}
}
*****OUTPUT*****
Enter initial Amount:10000
Enter
C For Credit
D For Debit
B For Balance
D
Enter Debit Amount:4000
New Amount:6000.0
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