Menu
Until now, my understanding was that == is an operator overload for .equals(). However, I recently discovered that
new Integer(1) == new Long(1) // returns true whereas
new Integer(1).equals(new Long(1)) // returns false so I guess == is not exactly a shorthand for .equals(), so how does it determine equality?
569
In Groovy == translates to a. compareTo(b)==0, if they are Comparable, and a. equals(b) otherwise.
An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. Groovy has the following types of operators − Arithmetic operators. Relational operators. Logical operators.
Groovy offers three logical operators for boolean expressions: && : logical "and" || : logical "or" ! : logical "not"
== in Groovy is roughly equivalent to equals(), however, you'll find it's different from Java when comparing different classes with the same value - if the class is Comparable. Groovy also does type casting if possible.
If you check out the code, it looks like ultimately compareToWithEqualityCheck() is executed for ==.
124
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
