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Java Java Data Structures Organizing Data Interfaces

Posted by Ashish Shah
Ashish Shah
1,468 Points

How does compareTo works? What does it checks and return the values ?

How does compareTo works? What does it checks and return the values ?

3 Answers

Zhoubing Yang
Zhoubing Yang
1,399 Points
Zhoubing Yang
Zhoubing Yang
1,399 Points

obj.compareTo(secondObj) returns -1, 0 and 1 for obj is less than, equals to and greater than secondObj

Timothy Hilley
Timothy Hilley
2,292 Points
Timothy Hilley
Timothy Hilley
2,292 Points

x.compareTo(y) if x is an int than if x = 1, and int y = 1, it will return 0, meaning they are ==. -1 if x < y, and 1 if x > y.

if x and y are strings containing chars, than if x = "abcdefg" and y = "bcdefghijklmnop", it will return 1, because a comes before b alphabetically. if it was reverse, and x started with say.. c, or d, or any letter after b, it would return -1. because x would therefore be < y.