java - "Iterating" through methods -

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let's i've got java object that's got among others following methods:

public string getfield1(); public string getfield2(); public string getfield3(); public string getfield4(); public string getfield5();

is there way iterate through these methods , call 'em following code?

string fields = ""; for(int = 1; <= 5; ++){    fields += object.(getfield+i) + " | "; }

thank upcoming ideas.

there way using reflection:

try{   method m= object.getclass().getmethod("getfield"+string.valueof(i), new class[]{});   fields+=(string)m.invoke(object); }catch(...){...}

however: business smells of bad coding practice! can't rewrite getfieldn() methods this?

string getfield(int fieldnum)

you asking trouble creating numbered methods. remember reflection slow , should used when string-based method calls absolutely essential flow of program. use technique user-defined scripting languages have method by name. isn't case @ here, calls integer-indexed. should therefore keep integer parameter.

if legacy code , absolutely unable change bad coding, might better off creating new method getmethod(int) above wrap existing methods, delegates numbered getmethodn() methods.


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