Efficient FizzBuzz

I wrote the following Fizz Buzz program. How can I improve it or make it more efficient?

public class FizzBuzz 
  {  
   public static void main(String[] args)
   {
    System.out.println("--------Fizz Buzz program-------------");
    for(int num=1;num<=100;num++)
     { 
      if(num%3==0)
       {
        if(num%5==0)    
        System.out.println("FizzBuzz");
        else
        System.out.println("Fizz");
      }
    else if(num%5==0)
     {
        if(num%3==0) 
        System.out.println("FizzBuzz");
        else
        System.out.println("Buzz");
     }
     else
     System.out.println(num);
    }
   }
  }

The issues I see with your code are:

• Indentation: Your indentation is inconsistent. One space per level is insufficient for readability.

-
Brace style: Leaving out the optional braces can lead to bugs when code is modified later. If you want to omit the braces, then also put the body on the same line to avoid any misconceptions.

if (num % 3 == 0)
{
    if (num % 5 == 0) System.out.println("FizzBuzz");
    else              System.out.println("Fizz");
}

Personally, I would advise that you stick with the standard Java conventions to make everyone's life easier. It also relieves the temptation to skimp on braces in the first place.

if (num % 3 == 0) {
    if (num % 5 == 0) {
        System.out.println("FizzBuzz");
    } else {
        System.out.println("Fizz");
    }
}

By the way, opening braces on a separate line can be brutal when it comes to try-catch-finally blocks.

try
{
    …
}
catch (Exception e)
{
    …
}
finally
{
    …
}

• Redundancy: The multiple-of-15 case is handled twice; it should need to be handled once.

-
Repetition of System.out.println(): I suggest using a ternary conditional expression instead.

for (int num = 1; num <= 100; num++) {
    System.out.println((num % 15 == 0) ? "FizzBuzz" :
                       (num %  3 == 0) ? "Fizz" :
                       (num %  5 == 0) ? "Buzz" :
                                         num);
}

StackExchange Code Review Q#36708, answer score: 15