Oct 04 2009

Simple Calculator

Category: C Programming — admin @ 12:01 pm 

/*Exercise 4.5 simple calculater*/
#include<stdio.h>
int main()
{
  float num1,num2,num3;
  int pre;
  printf("Enter number 1: ");
  scanf("%f",&num1);
  printf("Enter number 2: ");
  scanf("%f",&num2);
  printf("\tMathematical Oparation\n");
  printf("-----------------------------------------\n");
  printf("1 - Add\n");
  printf("2 - Subatract\n");
  printf("3 - Multiply\n");
  printf("4 - Divide\n");
  printf("-----------------------------------------\n");
  printf("Enter your preference: ");
  scanf("%d",&pre);
 switch(pre)
  {
    case 1:
      num3=num1+num2;
      printf("Answer: %.2f\n",num3);
      break;
    case 2:
      num3=num1-num2;
      printf("Answer: %.2f\n",num3);
      break;
    case 3:
      num3=num1*num2;
      printf("Answer: %.2f\n",num3);
      break;
    case 4:
      num3=num1/num2;
      printf("Answer: %.2f\n",num3);
      break;
    default:
      printf("Invalid Oparation!!\n");
  }
  fflush(stdin);
  getchar();
return 0;
}

Download Source code & exe

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Jul 17 2009

Flow Statements-If & Switch

Category: Java — admin @ 10:31 pm

  • If
public class flow1
{
	public static void main(String[] args)
	{
	int x=15;
	if (x>10)
		{
			System.out.println("x is grater than 10 ");
			System.out.println(x>10);
		}
	else
		{
			System.out.println("x is not grater than 10");
			System.out.println(x>10);
		}
	}
 
}

Result
x is grater than 10
true

  • Switch
public class flow2
{
		public static void main(String[] args)
		{
			int x=2;
			switch (x)
			{
				case 1:
					System.out.println("You have selected num 1");
					break;
				case 2:
					System.out.println("You have selected num 2");
					break;
				case 6:
					System.out.println("You have selected num 6");
					break;
				default:
					System.out.println("You haven't selected any num");
 
			}
 
		}
}

Result

You have selected num 2

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