What is IComparable interface in C#?
C# IComparable interface The IComparable interface defines a generalized type-specific comparison method that a value type or class implements to order or sort its instances. The IComparable is implemented by types whose values can be ordered or sorted. The interface requires the CompareTo method to be implemented.
Why IComparable is used in C#?
Use the IComparable Interface in C# to sort elements. It is also used to compare the current instance with another object of same type. It provides you with a method of comparing two objects of a particular type.
What is the difference between IComparer and IComparable in C#?
IComparable when defined for T lets you compare the current instance with another instance of same type. IComparer is used to compare any two instances of T , typically outside the scope of the instances of T .
Does string implement IComparable C#?
This current instance follows the object specified by the CompareTo method in the sort order. All numeric types (such as Int32 and Double) implement IComparable, as do String, Char, and DateTime.
What is the difference between comparable and IComparer?
IComparable has a method named as CompareTo & has only 1 parameter. Because it compares the current object with the next object which is coming as a parameter. Hence current object CompareTo next object. But IComparer has 2 parameters because we are going to pass both of the objects as arguments.
Can you give signature of method from IComparer interface C#?
You cannot pass extra arguments to IComparer ‘s Compare method, because method signature must match the signature in the interface.
How does Compare method work in C#?
The C# Compare() method is used to compare first string with second string lexicographically. It returns an integer value. If both strings are equal, it returns 0. If first string is greater than second string, it returns 1 else it returns -1.
Does string implement IComparable?
All numeric types (such as Int32 and Double) implement IComparable, as do String, Char, and DateTime.
What does compareTo return in C#?
CompareTo() Method is used to compare the current instance to a specified object or to another Single instance and returns an integer which shows whether the value of the current instance is greater than, equal to, or less than the value of the specified object or the other Single instance.