Showing posts with label increment. Show all posts
Difference between post increment, decrement and pre increment,decrement
Most of the new programmers are stuck between post and pre increment.
What is the difference between ++a and a++. This post will clear your confusion.
++a is a pre increment type in which first of all 1 is added in a and then its value is considered in expression. where ever in pre increment type that is a++ first of all a value is considered for expression than 1 is added to a.
Did'nt Understand?? this example will make the idea clear.
if a = 3;
b = ++a; (In this case there is pre-increment a will increase and then its value is returned to b so b will be 4 and a will also become 4)
if a = 3;
b = --a; (In this case there is pre-decrement a will first decrease and then its value is returned to b. so b will be equal to 2 and a also will be 2)
if a = 3;
b = a++ (In this case there is post-increment a value will be returned to b and then a will increase by 1 that is b will be 3 and a will become 4)
if a = 3;
b = a-- (In this case there is post-decrement a value will be returned to b and then a will decrease by 1 that is b will be 3 and a will become 2)
What is the difference between ++a and a++. This post will clear your confusion.
++a is a pre increment type in which first of all 1 is added in a and then its value is considered in expression. where ever in pre increment type that is a++ first of all a value is considered for expression than 1 is added to a.
Did'nt Understand?? this example will make the idea clear.
if a = 3;
b = ++a; (In this case there is pre-increment a will increase and then its value is returned to b so b will be 4 and a will also become 4)
if a = 3;
b = --a; (In this case there is pre-decrement a will first decrease and then its value is returned to b. so b will be equal to 2 and a also will be 2)
if a = 3;
b = a++ (In this case there is post-increment a value will be returned to b and then a will increase by 1 that is b will be 3 and a will become 4)
if a = 3;
b = a-- (In this case there is post-decrement a value will be returned to b and then a will decrease by 1 that is b will be 3 and a will become 2)
Sunday, 12 October 2014
Posted by Unknown
