CONTROL STRUCTURES II: REPETITION - Java Programming: From Problem Analysis to Program Design - page 282

The output is:
10 9 8 7 6 5 4 3 2 1
In this for loop, the variable i is initialized to 10 . After each iteration of the
loop, i is decremented by 1 . The loop continues to execute as long as i >= 1 .
2. You can increment (or decrement) the loop control variable by any fixed
number (or modify it in any way you please). In the following for loop, the
variable is initialized to 0 ; at the end of the for loop, i is incremented by 2 .
This for loop outputs 10 even integers 0 through 18 :

for (i = 0; i < 20; i = i + 2)
System.out.print(i + " ");

System.out.println();

EXAMPLE 5-13

Consider the following examples, where i is an int variable.
1.

for (i = 10; i <= 9; i++)
System.out.print(i + " ");

System.out.println();

In this for loop, the initial expression sets i to 10 . Because initially the
logical expression ( i <= 9 )is false ,thebodyofthe for loop does not
execute.

2.

for (i = 9; i >= 10; i--)
System.out.print(i + " ");

System.out.println();

In this for loop, the initial expression sets i to 9 . Because initially the logical
expression ( i >= 10 )is false , the body of the for loop does not execute.

3.

for (i = 10; i <= 10; i++) //Line 1

System.out.print(i + " "); //Line 2

System.out.println(); //Line 3

In this for loop, the output statement in Line 2 executes once.

4.

for (i = 1; i <= 10; i++);
System.out.print(i + " ");

System.out.println();