The if .....else if.......else statement in JAVA

 

 

 

 

 

The if .....else if.......else statement  :-

An if statement  can followed by an optional else if.......else  statement , which is very  useful  to  test variouse  conditions  using  single if ......else  statement. When  using  if , else if, else  statement  there are  few  points to  keep in mind .

1. An if can have  zero  or  one  else's and it must come after any else if 's.

2. An if can have zero  to many else  if's  and they  must  come  before  the else.

3. Once an else if succeeds, none of the remaining else if's or else's will be tested.

The syntax  of an  if..... else is   :-  

if (Boolean _ expression 1)

{

     // Executes when the Boolean  expression  1 is true 

}

else if (Boolean _ expression 2)

{

     // Executes when the Boolean  expression 2 is true 

}

else if (Boolean _expression  3)

{

    //Executes when  the Boolean expression  3 is true  

}

else

{

      //Executes when the  none  of the  above  condition  is true.

}

EXAMPLE :-

 public class Test

{

    public static void main (String args[])

   {

      int x = 30;

      if (x == 10)

   

      {

          System .out.print("Value of X is 10");

        }

      else if(x == 20)

      

      {

          System .out.print("Value of X is 20");

        }

 

      else if(x == 30)

   

      {

          System .out.print("Value of X is 30");

        }

 

      else 

        {

             System .out.print("This is else statement");

      

           }

    

      }

  }

 

 

OUTPUT :-

Value of X is 30