11. Omitting Parts of the for



Answer:
No. In more complicated expressions using a postfix operator instead of a prefix operator usually 
makes a difference, but not here.






Omitting Parts of the for



    

        

        

        

        

            

        

    







    

    

    







    
        

            
                
for loop

            		
            
                
while loop

            		
        

        

            
                

                    
for ( initialize ; test ; change )

                    
  loopBody ;

                

            		
            
                

                    
initialize;

                    
while ( test )

                    
{

                    
  loopBody;

                    
  change

                    
}

                

            		
        

    




    
Parts of a for can be omitted. Since the three parts of a for are the three parts of any loop, when a part is eliminated from a for it has to be done elsewhere. Recall that
        the 
        for is equivalent to a while.





    
You can omit the initialize part from the for loop. It now acts the same as a while loop with its initialize part omitted. Doing this is useful when initialization is complicated
        and you wish to do it in several statements before the loop. For example, initialization may depend on user input:

    




// get initial value of count from the user here
    for (    ; count < 13; count++  )  
    {
      System.out.println( "count is: " + count ); 
    }
    System.out.println( "\nDone with the loop.\nCount is now" + count);



    

    


Enter initial value:   

       


    







Question 11:
Do you think that the change part of a for can be omitted (as long as it is done somewhere else)?