Method calling in java -


this question has answer here:

i have following structure of class:

void add(string s){     system.out.println("string"); }  void add(object s){     system.out.println("object"); }  public static void main(string[] args) {     new myclazz().add(null); }

o/p : string

why object not called?

string more specific object. therefore void add(string s) preferred on void add(object s).

15.12.2. compile-time step 2: determine method signature

the second step searches type determined in previous step member methods. step uses name of method , argument expressions locate methods both accessible , applicable, is, declarations can correctly invoked on given arguments.

there may more 1 such method, in case specific 1 chosen. the descriptor (signature plus return type) of specific method 1 used @ run time perform method dispatch.


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