Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
564 views
in Technique[技术] by (71.8m points)

overloading - Is it possible to have different return types for a overloaded method?

In method overloading, is it possible to have different return types for a overloaded method? for example,

void foo(int x) ;
int foo(int x,int y);
double foo(String str);

in general object oriented programming, is it possible?

question from:https://stackoverflow.com/questions/2807840/is-it-possible-to-have-different-return-types-for-a-overloaded-method

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

In a class, there can be several methods sharing the same name but differ in

  1. Parameter types
  2. Number of parameters
  3. Order of the parameters declared in the method

By depending on the parameters provided for the method, in the run time, compiler determines which version of the method to execute.

An overloaded method may or may not have different return types. But return type alone is not sufficient for the compiler to determine which method is to be executed at run time.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...