if statement - How to assign numbers to words in java? -

if statement - How to assign numbers to words in java? -

i have problem lastly part of code. want assign numbers specific words 0 value, though strings first system.out.println correctly, cannot numerical equivalents of strings @ sec system.out.println.any ideas how solve problem?

public static double number; protected void mymethod(httpservletrequest request, httpservletresponse response) { string speech= request.getparameter("speech"); system.out.println("the recognized speech : "+ speech); // there no problem till here. if(speech == "hi") number = 1 ; if(speech== "thanks") number = 2 ; if(speech== "bye") number = 0 ; system.out.println("the number speech : " + number); }

however here dont right numbers 0 each word!

you can't utilize == operator check if 2 strings have same value in java, need utilize .equals() or equalsignorecase() methods instead:

if("hi".equalsignorecase(speech)) { number = 1; } else if("thanks".equalsignorecase(speech)) { number = 2; } else if("bye".equalsignorecase(speech)) { number = 0; } else { number = -1; }

the reason == operator compares references; homecoming true if , if instance stored in variable speech same instance literal string you've created between double quotes ("hi", "thanks", or "bye").

note utilize equalsignorecase() phone call on literal string i'm declaring, rather variable assigned parameter. way, if speech == null, method phone call still valid ("hi" always string), , won't nullpointerexception, , flow go on until else branch.

java if-statement methods numbers assign