Coders PlayGround

The if construct:

if(condition)
{
    // The desired operation
}

---

The if-else construct:

if(condition)
{
    // The desired operation
}else{
  // The desired operation
}

---

if - else if - else

if(condition1)
{
    // The desired operation
}else if(condition2)
{
    // The desired operation
}else
{
    // The desired operation
}

public class Grade
{
 public static void main(String args[])
 {
  int phy,chem,math;
  double a;
  phy=69;
  chem=81;
  math=80;
  a=(phy+chem+math)/3;
  System.out.println("Percentage: "+a);
  if(a>=75)
  {
   System.out.println("Grade:A");
  }
  else if(a>=50)
  {
   System.out.println("Grade:B");
  }
  else if(a>=35)
  {
   System.out.println("Grade:C");
  }
  else
  {
   System.out.println("Fail");
  }
 }
}
OUTPUT
Percentage: 76.0
Grade:A

Hello everyone,

The factorial is denoted by "!"

So when we say, find 3 factorial, it is mathematically written as 3!

Now let us look into the formula as to how to find the factorial of any number.
Factorial of a number n is given by n! = n(n-1)(n-2)!

Suppose, factorial of 5 is 5 x 4 x 3 x 2 x 1 = 120.

• The factorial of 1! = 1
• The factorial of 0! = 1

import java.util.Scanner;
public class Factorial
{
 public static void main(String args[])
 {
  int i, fact=1;
  System.out.println("Enter the Number:");
  Scanner in= new Scanner(System.in);
  int a=in.nextInt();
  for(i=1;i<=a;i++)
  {
   fact=fact*i;
  }
  System.out.println(factorial +"!="+fact);
 }
}
OUTPUT
Enter the Number:
5
Factorial != 120

Hello Friends,
This is a program to print a simple message:

Remember: The file name should be same as the class Name.

In this case, the file name will be First.java