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Is there any difference between a==b and a.Equals(b)?



Posted By: Avi Date: 30 September 2010 10:31:14 PM
 Answer:

Both are used for comparisons but it depends whether they are being compared value based or refrence based. Value Based:- For the type "==" and "Equals" works exactly the same such as will compare the values and will return true if a nd b have equal values in them. Example:- int a = 1; int b= 1; a == b >> True a.Equals(b) >> True Refrence Based:- In this case "==" compares the refrence and returns true if and only if both refrence points are same. But "Equal" still compares the value at that refrence points.. So if values are same the result will be true else false. Example:- StringBuilder a = new StringBuilder(“Hello”); StringBuilder b = new StringBuilder(“Hello”); a == b >> False a.Equals(b) >> True But now look at following issue: String a = “Hello”; String b = “Hello”; In above case the results will be, a == b >> True a.Equals(b) >> True


Posted By: avibtech

Date: 30 September 2010 10:31:14 PM
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