What is the difference between ++var and var++?
Asked by Chittaranjan Last Modified
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First one is present increment and second one is the post incremental t of the variable. Both increases value of var to one. The difference between pre and post increment is given in below example. Int a=10. Int b=++a Then a and b both have the value 11. If b=a++ Then a become 11 and b have 10...
read more First one is present increment and second one is the post incremental t of the variable. Both increases value of var to one. The difference between pre and post increment is given in below example. Int a=10. Int b=++a Then a and b both have the value 11. If b=a++ Then a become 11 and b have 10 old value of a. read less
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in ++var operation var will increment by 1 first and den comes into action where var++ will do action with current value of var and den it increment by 1
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++var -- is for pre-increment, var++ -- is for post increment you will only see the effect when you are assigning this kind of operation to another variable, say int var=10; int i=0; i=++var; // here value of var(10 is incremented and then assigned to variable i, so i and var will be 10 now) var=10; i=var++;...
read more ++var -- is for pre-increment, var++ -- is for post increment you will only see the effect when you are assigning this kind of operation to another variable, say int var=10; int i=0; i=++var; // here value of var(10 is incremented and then assigned to variable i, so i and var will be 10 now) var=10; i=var++; // here value of var is first assigned to i and then var is incremented so in this case, i=10, var=11; remember to avoid these kind of increment or decrement operators which doing math problems, as debugging will be difficult read less
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Rahul P
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The difference is as in the notation, one first one is pre and second one is post increment. Pre increment , first increment the value to var+1 and do the rest. In post increment , at first execute the rest and then increment to var+1. var= var+1 is the final result.
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++var is the pre-increment operator, that means firstly the value of variable is incremented and then assign new value to the variable. For eg var=9 and ++var means now the value is 10. var++ is post-increment operator,that means firstly the value is assign and then value is incremented. For eg: var=9...
read more ++var is the pre-increment operator, that means firstly the value of variable is incremented and then assign new value to the variable. For eg var=9 and ++var means now the value is 10. var++ is post-increment operator,that means firstly the value is assign and then value is incremented. For eg: var=9 and var++ i.e the value of var is 9 read less
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first one is pre incrementing, second one is post incrementing. Lets take an example; int a,b=10, c; a=++b; c=b++; The values you get will be a=11; b=12, c=11; In case of pre-incrementation, increment happens first, then assignment. In case of post increment, assignment happens first and then...
read more first one is pre incrementing, second one is post incrementing. Lets take an example; int a,b=10, c; a=++b; c=b++; The values you get will be a=11; b=12, c=11; In case of pre-incrementation, increment happens first, then assignment. In case of post increment, assignment happens first and then increment; That is why b is incremented twice but a and c got values based on when the increment is performed. read less
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See below example; int var==10; int c,d; c=var++; # value of 'c' here is 10, var is incremented to 1 i.e. 11; var=10; #resetting 'var' value to 10 for your better understanding. d=++var; # value of 'd' here is 11. Even var value also 11. in case of ++var, value of 'var' will be first incremented...
read more See below example; int var==10; int c,d; c=var++; # value of 'c' here is 10, var is incremented to 1 i.e. 11; var=10; #resetting 'var' value to 10 for your better understanding. d=++var; # value of 'd' here is 11. Even var value also 11. in case of ++var, value of 'var' will be first incremented and then assigned to the lvalue (in above e.g. 'd') in case of var++, first 'var' value will be assigned to the lvalue and then 'var' will be incremented (in above e.g. its 'c'). Kindly let me know if you need still more clarification. read less
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These are call pre and post increments respectively. Pre increment allows the program to utilize the updated variable but the post increment does not activates the updated value of the variable until the current context terminates.
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++var is pre increment.var++ is post increment.Alone if we see pre/post increment there is no difference.variable will get incremented by 1. We can see the difference between pre/post increment only if we use with assignment operator.++var meaning is first increment then assign.var++ meaning is first...
read more ++var is pre increment.var++ is post increment.Alone if we see pre/post increment there is no difference.variable will get incremented by 1. We can see the difference between pre/post increment only if we use with assignment operator.++var meaning is first increment then assign.var++ meaning is first assign then increment. read less
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++Var is pre increment where as var++ is post increment.
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