Unconditional Control Statement

There are 4 types of Unconditional/Case Control Statements in C language. They are,

1. switch
2. break
3. continue
4. goto

1. SWITCH CASE STATEMENT IN C:

• Switch case statements are used to execute only specific case statements based on the switch expression.
• Below is the syntax for switch case statement.

switch (expression)
{
     case label1:   statements;
                           break;
     case label2:   statements;
                           break;
     case label3:   statements;
                           break;
     default:      statements;
                           break;
}

EXAMPLE PROGRAM FOR SWITCH..CASE STATEMENT IN C:

#include<stdio.h>
int main ()
{
int value = 3;
switch(value)
{
  case 1:
      printf(“Value is 1 \n” );
      break;
  case 2:
      printf(“Value is 2 \n” );
      break;
  case 3:
      printf(“Value is 3 \n” );
      break;
  case 4:
      printf(“Value is 4 \n” );
      break;
  default:
      printf(“Value is other than 1,2,3,4 \n” );
}
return 0;
}

OUTPUT:

Value is 3

2. BREAK STATEMENT IN C:

• Break statement is used to terminate the while loops, switch case loops and for loops from the subsequent execution.
• Syntax: break;

3. CONTINUE STATEMENT IN C:

• Continue statement is used to continue the next iteration of for loop, while loop and do-while loops.  So, the remaining statements are skipped within the loop for that particular iteration.
• Syntax : continue;

4. GOTO STATEMENT IN C:

• goto statements is used to transfer the normal flow of a program to the specified label in the program.
• Below is the syntax for goto statement in C.

{
         …….
         go to label;
         …….
         …….
         LABEL:
         statements;
}