A question about equals

[Gnome986]

[code]
Which methods can be legally applied to a string object?
a.equals(String)
b.equals(Object)
c.trim()
d.round()
e.toString()
the answer is a b c d e
my question is focus on a.
because i have viewd the api for jdk1.3 and i merely find the method of equals(Object obj) at the the class of String.So i think the answer shouldn't include a.
my english is poor so i don't know if i explain clearly.

[Scott Appleton]

A String "is an" Object and is therefore a legal argument to any method which takes an Object as a parameter.

[Junilu Lacar]

Also, d is incorrect. You cannot round() a String.

[Gnome986]

Thx

[Thomas Paul]

Hi gnome986,
Please read the JavaRanch Name Policy and re-register using a name that complies with the rules.
http://www.javaranch.com/name.jsp

Thanks for your cooperation.

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Co-Moderator of the Programmer Certification Forums