android studio設計Bmi計算器app
----------------------------------------------------------------------------------------------------- //bmi.java檔 package com.tom.bmi; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import java.text.DecimalFormat; import java.text.NumberFormat; public class bmi extends AppCompatActivity { private EditText edWeight ; private EditText edHeight ; private Button bHelp ; public void bmi(View v) { //取得元件並計算BMi String w = edWeight .getText().toString() ; String h = edHeight .getText().toString() ; float weight = Float. parseFloat (w); float height = Float. parseFloat (h); float bmi = weight/(height*height)* 10000 ; Log. d ( "BMI" , String. valueOf (bmi)); String aaa= String. format ( "%.3...
