How is a for loop structured in Java?

Is it different than C or C#?

From stackoverflow

• Check this link for yourself.

• The following demonstrates the syntax of a java for loop (from the for loop in Java):

  class Hello {
     public static void main (String args[]) {
  
       System.out.print("Hello ");   // Say Hello
       for (int i = 0; i < args.length; i = i + 1) { // Test and Loop
         System.out.print(args[i]);  
         System.out.print(" ");
       }
       System.out.println();  // Finish the line
     }
  }
  

  Also see the Wiki entry on For loop

  indyK1ng : +1 for demonstrating instead of just linking

  MattC : I'm interested why you did i = i + 1 instead of just i++. Was it just you being verbose or do you have another reason? I've just never seen that used in a very long time.

  Gavin Miller : @MattC - Didn't write it, just grabbed it from the website referenced.

• The only difference between java's for-loop syntax and C's is you can declare variables in the initialization field (1st section) of the loop

  dfa : IIRC C99 allows declarations like this: for (int i = ... )

• Java has one keyword, for, but it can be used in two different manner:

  /* classical, C/C++ school */
  for (int i = 0; i < N; i++) {
  
  }
  

  for-each style:

  // more object oriented, since you use implicitly an Iterator 
  // without exposing any representation details 
  for (String a : anyIterable) {
  
  }
  

  it works for any type that implements Iterable<String> such as List<String>, Set<String>, etc.

  The latter form works also for arrays, see this question for a more "phisophical approach".