How do I use IComparable?
How do I use IComparable?
Think of IComparable as providing a default sort order for your objects. For example, if you have an array of objects of your type, and you call the Sort method on that array, IComparable provides the comparison of objects during the sort. When you implement the IComparable interface, you must implement the CompareTo method, as follows:
What is IComparable in Salesforce?
IComparable. The role of IComparable is to provide a method of comparing two objects of a particular type. It is necessary if you want to provide any ordering capability for your object. Think of IComparable as providing a default sort order for your objects.
What is the role of IComparer?
The role of IComparer is to provide more comparison mechanisms. For example, you might want to provide ordering of your class on several fields or properties, ascending and descending order on the same field, or both.
What is the difference between IComparer and stringcompare?
String.Compare is used in this example because the property that is chosen for the comparison is a string. The role of IComparer is to provide more comparison mechanisms. For example, you might want to provide ordering of your class on several fields or properties, ascending and descending order on the same field, or both.
What is compareicomparable in Java?
IComparable.CompareTo(Object) Method. Definition. Compares the current instance with another object of the same type and returns an integer that indicates whether the current instance precedes, follows, or occurs in the same position in the sort order as the other object.
What is the use of compareTo method?
The CompareTo method is implemented by types whose values can be ordered or sorted. It is called automatically by methods of non-generic collection objects, such as Array.Sort, to order each member of the array.
How do I implement custom sorting for a class with IComparable?
IComparable allows custom sorting of objects when implemented. When a class implements this interface, we must add the public method CompareTo (T). We implement custom sorting for a class with IComparable. Example.
