create a web page

create a web page println("All done!"); }} When we write i++ we're using shorthand for i = i + 1. When we say i-- we're using shorthand fori = i - 1. Adding and subtracting one from a number are such common operations that these special increment and decrement operators have been added to the language. They also allow the compiler to be smarter about certain optimizations on some CPU architectures, but mainly they make code easier to write and read.However what do you do when you want to increment not by one but by two? or three? or fifteen? We could of course write i = i + 15 but this happens frequently enough that there's another short hand for the general add and assign operation, +=.

create a web page We would normally write this as i += 15. Thus if we wanted to count from 0 to 20 by two's we'd write:class CountToTwentyByTwos { public static void main (String args[]) { int i; for (i=0; i <=20; i += 2) { System.out.println(i); } System.out.

create a web page println("All done!"); } //main ends here}As you might guess there is a corresponding -= operator. If we wanted to count down from twenty to zero by twos we could write:class CountToZeroByTwos { public static void main (String args[]) { int i; for (i=20; i >= 0; i -= 2) { System.out.println(i); } System.out.

create a web page

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create a web page