Switch is an alternative to using a long sequence of if...else if... statements where each conditional expression is essentially the same, evaluating to the same data type but with different values.
For instance:
if(x==1) statement_1;
else if(x==2) statement_2;
else if(x==3) statement_3;
else statement_4;
The above can also be written:
switch(x)
{
case(1): statement_1; break;
case(2): statement_2; break;
case(3): statement_3; break;
default: statement_4;
}
Most would regard the second version as more readable as there's only one conditional expression to evaluate.
There are two programming languages which use a C switch statement. The two languages are C and C++, hence the name C switch statement. There may be more, but those are the most obvious ones
The goto statement.
Yes, you can call a function from within a switch statement in C. switch (i) { case 0: function1(i); break; case 1: function2(i); break; default: function3(i); break; } When the function returns, you will still be in the switch statement.
...a function call.
if (condition) statement else statement;
If statement is single selection statement,whereas the switch statement is multiple selective.
The switch / case statement.
There are two programming languages which use a C switch statement. The two languages are C and C++, hence the name C switch statement. There may be more, but those are the most obvious ones
The goto statement.
Control statements are statements that alter the flow of execution according to the evaluation of an expression (the condition). The C++ control statements are ifstatements, switch statements and the tertiary conditional operator, ?:.
Yes, you can call a function from within a switch statement in C. switch (i) { case 0: function1(i); break; case 1: function2(i); break; default: function3(i); break; } When the function returns, you will still be in the switch statement.
An object in C++ is an instance of a C++ class.
The basic control structure in C++ is the if statement.
The break statement exits control of the innermost for, while or do-while loop, or switch statement.
...a function call.
if (condition) statement else statement;
if while switch