A good answer might be:

Just before the test part of a loop. This is were for loops automatically put it, and where it is sensible to put it if you are implementing a loop with a while.

Active For Loop

Here is another example. Notice that the loop body is a block statement although there is only one statement nested inside the block. This is syntactically correct.

int count;
for ( count = 0; count < 7; count++ )  
  System.out.println( "count is: " + count ); 
System.out.println( "Done with the loop" );

Here is a JavaScript version of this loop.

To see the code behind this demonstration, in your Web browser click "View" then "Source". Of course, because this is Javascript, not Java, there are several differences.


Do you think that the change part of the for statement must always increment by one?