Case Control Structure – Theory and Programs [Learn to code]

What is Case Control Structure? Learn syntax for Case Control Structure, types of Case Control Structure and different programs on Case Control Structure.

• 057. Write a program to accept a single value interger from user and print that integer in words in C language

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int n;
  	clrscr();
  	printf("Enter number...");
  	scanf("%1d",&n);  //%1d to scan single integer
  	switch(n)
  	{
  		case 0 : printf("Zero");break;
  		case 1 : printf("One");break;
  		case 2 : printf("Two");break;
  		case 3 : printf("Three");break;
  		case 4 : printf("Four");break;
  		case 5 : printf("Five");break;
  		case 6 : printf("Six");break;
  		case 7 : printf("Seven ");break;
  		case 8 : printf("Eigth ");break;
  		case 9 : printf("Nine ");break;
  	}
  	getch();
  }
  

• 058. Write a program to accept a number from user and print that number in words but in reverse order in C language

  E.g. 153 -> THREE FIVE ONE

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int n,rem;
  	clrscr();
  	printf("Enter number...");
  	scanf("%d",&n);
  	while(n>0)
  	{
  		rem=n%10;
  		switch(rem)
  		{
  		  case 0 : printf("Zero");break;
  		  case 1 : printf("One");break;
  		  case 2 : printf("Two");break;
  		  case 3 : printf("Three");break;
  		  case 4 : printf("Four");break;
  		  case 5 : printf("Five");break;
  		  case 6 : printf("Six");break;
                    case 7 : printf("Seven");break;
  		  case 8 : printf("Eigth");break;
  		  case 9 : printf("Nine");break;
  		}
  		n=n/10;
  
  	}
  	getch();
  }
  
  
  
  

• 059. Write a Program to accept two numbers and a operator (+, -, *, / from user and complete that particular operation only in C language

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int n,rem,a,b;
  	char op;
  	clrscr();
  	printf("Enter Operator(+,-,*,/)...");
  	scanf("%c",&op);
  	printf("Enter numbers...");
  	scanf("%d%d",&a,&b);
  	switch(op)
  	{
  	case '+' : printf("Result : %d ",a+b);break;
  	case '-' : printf("Result : %d ",a-b);break;
  	case '*' : printf("Result : %d ",a*b);break;
  	case '/' : printf("Result : %d ",a/b);break;
  	default  : printf("Invalid operator....");
  	}
  	getch();
  }