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The For Statement

9. Incrementing by a Variable



Answer:
start at 0, count upward by 1's, end at 7
for ( count = 0; count < 8; count++ )
start at 0, count upward by 2's, end at 14
for ( count = 0; count < 15; count += 2 )
start at 1, count upward by 2's, end at 15
for ( count = 1; count < 16; count += 2 )






Incrementing by a Variable



    

        

        

        

        

            

        

    







    

    

    
Here is a program fragment that uses an increment amount contained in a variable.
    

    

    





    
int count;
int inc;

// ... get inc from the user ...

for ( count = 0; count < 21; count = count + inc )  
{
  System.out.println( "count is: " + count ); 
}
System.out.println( "\nDone with the loop.\nCount is now" + count);




    

    

    

    

        

Enter increment value:   

     
            


        
(The actual code behind this example does some error checking not seen in the above.)

    
    







Question 9:
What is the smallest value of inc such that the loop body will execute only one time? 
Confirm your answer by testing it with the program.