Java operators Tutorial

Java Operators Tutorial.

3. Java Increment Decrement Operators

Increment and Decement operator can be used either prefix (--x, ++x) or postfix (x--, x++) mode.

When we write a++ we're using shorthand for a = a + 1. When we say a-- we're using shorthand for a = a - 1.

example expression	equivalent longer expression
a++;(increment) b=a++; ++a; b=++a;	a=a+1; b=a; a=a+1; a=a+1; a=a+1; b=a;

Examples:


public class incrementdecrementSample{
	public static void main(String[] args) {
	
	int i;
	for (i=0;i<10;i++)
	{
		System.out.print("increment = " + i);
	}
}

The output from the above examples would be:

	increment = 0
	increment = 1
	increment = 2
	increment = 3
	increment = 4
	increment = 5
	increment = 6
	increment = 7
	increment = 8
	increment = 9

Note i < 10 - so 9 has to be our last number. We could also of said for (i=10;i>0;i--)