The compareTo method compares the current object with the object sent as a parameter . When implementing it, we need to make sure that the method returns: A positive integer, if the current object is greater than the parameter object. A negative integer, if the current object is less than the parameter object.
Read moreCan you use == to compare objects in Java?
In Java, the == operator compares that two references are identical or not . Whereas the equals() method compares two objects. Objects are equal when they have the same state (usually comparing variables). Objects are identical when they share the class identity.
Read moreHow do you compareTo objects in Java?
The compareTo method defines the natural order; the default way for ordering objects of a class. It should return a negative integer(usually -1), if the current triggering object is less than the passed one, and positive integer (usually +1) if greater than, and 0 if equal.
Read moreWhat is difference between == equals () and compareTo () method in Java?
The 2 main differences are that: equals will take any Object as a parameter, but compareTo will only take Strings . equals only tells you whether they’re equal or not, but compareTo gives information on how the Strings compare lexicographically.
Read moreWhy compareTo () should be consistent to equals () method in Java?
2) CompareTo must be in consistent with equals method e.g. if two objects are equal via equals() , there compareTo() must return zero otherwise if those objects are stored in SortedSet or SortedMap they will not behave properly .
Read moreWhy compareTo () should be consistent to equals () method in Java?
2) CompareTo must be in consistent with equals method e.g. if two objects are equal via equals() , there compareTo() must return zero otherwise if those objects are stored in SortedSet or SortedMap they will not behave properly .
Read moreHow do you write a compareTo method in Java?
Java String compareTo() Method Example
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