java - Android BMI calculation in CM and KG -


hye, want create bmi simple android application. found code code calculate in lbs , inch. but, program need create in kg , cm. try recode back. but, still cant find solution.

this code.

package com.example.bmicalculator;      import android.app.activity;     import android.os.bundle;     import android.widget.textview;     import android.widget.edittext;     import android.widget.button;     import android.view.view;      public class bmicalculatoractivity extends activity {      private edittext txtheight;     private edittext txtweight;     private textview txtresult;     private button btncalculate;     private double bmi = 0;     private double valueheight = 0;     private double valueweight = 0;     private string resulttext;       /** called when activity first created. */     @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);         initcontrols();         /*textview tv = new textview(this);         tv.settext("bmi calculator");         setcontentview(tv);*/     }       private void initcontrols() {         txtheight = (edittext)findviewbyid(r.id.txtheight);         txtweight = (edittext)findviewbyid(r.id.txtweight);         txtresult = (textview)findviewbyid(r.id.txtresult);         btncalculate = (button)findviewbyid(r.id.btncalculate);         //btnreset = (button)findviewbyid(r.id.btnreset);         btncalculate.setonclicklistener(new button.onclicklistener() { public void onclick (view v){ calculate(); }});         //btnreset.setonclicklistener(new button.onclicklistener() { public void onclick (view v){ reset(); }});     }      private void calculate()    {         valueheight =double.parsedouble(txtheight.gettext().tostring());         valueweight =double.parsedouble(txtweight.gettext().tostring());         bmi = (valueweight / (valueheight * valueheight));         //txttipamount.settext(double.tostring(bmi));         if (bmi >= 30) { /* obese */             resulttext = "your bmi of " + double.tostring(bmi) + " obese.";             txtresult.settext(resulttext);         } else if (bmi >= 25) {             resulttext = "your bmi of " + double.tostring(bmi) + " overweight.";             txtresult.settext(resulttext);         } else if (bmi >= 18.5) {             resulttext = "your bmi of " + double.tostring(bmi) + " ideal.";             txtresult.settext(resulttext);         } else {             resulttext = "your bmi of " + double.tostring(bmi) + " underweight.";             txtresult.settext(resulttext);         }     }     private void reset()     {         txtresult.settext("your bmi unknown.");         txtheight.settext("0");         txtweight.settext("0");     }    }

thanks in advance.

to bmi (body mass index) in metric, need divide weight in kilograms height in meters^2. if asking height in cm, divide 100 before calculation. example:

private void calculate()    {     valueheight =double.parsedouble(txtheight.gettext().tostring());     valueweight =double.parsedouble(txtweight.gettext().tostring());     double valueheightmeters;      valueheightmeters = valueheight / 100; // converting meters.     bmi = (valueweight / (valueheightmeters * valueheightmeters));      //txttipamount.settext(double.tostring(bmi));     if (bmi >= 30) { /* obese */         resulttext = "your bmi of " + double.tostring(bmi) + " obese.";         txtresult.settext(resulttext);     } else if (bmi >= 25) {         resulttext = "your bmi of " + double.tostring(bmi) + " overweight.";         txtresult.settext(resulttext);     } else if (bmi >= 18.5) {         resulttext = "your bmi of " + double.tostring(bmi) + " ideal.";         txtresult.settext(resulttext);     } else {         resulttext = "your bmi of " + double.tostring(bmi) + " underweight.";         txtresult.settext(resulttext);     } }

hope helps!


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