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I don't understand why a equals 1 and b equals 0 in this program


I don't understand why a equals 1 and b equals 0 in this program

By : Kati Mello
Date : September 23 2020, 06:00 PM
will be helpful for those in need I don't understand why a equals 1 and b equals 0 at the end. They should be the same in my view. in advance. , Before this call:
code :
printf("a=%d,b=%d",a,b++);
a++;
printf("a=%d,b=%d",a,++b);


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Char.Equals vs Object.Equals -- ReSharper suggests that I should use Object.Equals. Should I?

Char.Equals vs Object.Equals -- ReSharper suggests that I should use Object.Equals. Should I?


By : Cheung
Date : March 29 2020, 07:55 AM
wish of those help It is impossible to override static members - Object.Equals() is a static member, and Char cannot override it, even though you can call it on the Char type (the params are still of type Object)
Therefore, it makes no difference whether you call
code :
Object.Equals(object yourChar, object anotherChar) 
Char.Equals(object yourChar, object anotherChar)
if (yourChar.Equals(anotherChar)) doSomething();
linux bash if $a equals anything then $b equals 1 but if $a equals nothing then $b equals nothing

linux bash if $a equals anything then $b equals 1 but if $a equals nothing then $b equals nothing


By : AnushaR
Date : March 29 2020, 07:55 AM
This might help you default flag will always equal either nothing or [0-9], if default flag equals [0-9] then track_number equals 1 but if track_number equals nothing then track_number equals nothing , This condition is the problem:
code :
if [ -s $default_flag ];
   -s FILE
          FILE exists and has a size greater than zero
[[ -z "$default_flag" ]] && track_number="" || track_number="1"
Dont understand this implementaion of equals method

Dont understand this implementaion of equals method


By : MacVista
Date : March 29 2020, 07:55 AM
seems to work fine If the two objects being compared have the same reference, this is the same object, and there's no point in comparing anything else. You can return true immediately and save some comparisons.
The other properties are guaranteed to be equal in this case.
Transitivity relationship: What is x.equals(z) when x.equals(y) is false and y.equals(z) is true

Transitivity relationship: What is x.equals(z) when x.equals(y) is false and y.equals(z) is true


By : Ash
Date : March 29 2020, 07:55 AM
Hope this helps If the equals method is correctly implemented, as demanded by the javadoc of Object:
It is reflexive: for any non-null reference value x, x.equals(x) should return true. It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true. It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified. For any non-null reference value x, x.equals(null) should return false.
A Mechanism for having different equals (physical equals and logical equals) on objects in Collection

A Mechanism for having different equals (physical equals and logical equals) on objects in Collection


By : Livia Tarcea
Date : March 29 2020, 07:55 AM
around this issue Your question doesn't really come across clearly, at least to me. If this doesn't answer it properly, could you re-word a little bit?
Within a given Collection concrete type, most equals implementations already do what you hint at. For instance:
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