Convert Centimeter to inches In android programming .

Hello Friend's . would i like to share today how to we can convert centimeter to inches in android programming .
first thing design part so first create new android studio project then go to main. xml class

and just copy that code

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    

xmlns:tools="http://schemas.android.com/tools"  

  android:layout_width="match_parent"  

  android:layout_height="match_parent"   

 android:paddingBottom="@dimen/activity_vertical_margin"   

 android:paddingLeft="@dimen/activity_horizontal_margin"  

  android:paddingRight="@dimen/activity_horizontal_margin"  

  android:paddingTop="@dimen/activity_vertical_margin"  

  tools:context="com.example.kogta.imagesave.MainActivity">

    <TextView        

android:layout_width="wrap_content"   

     android:layout_height="wrap_content"  

      android:textAppearance="?android:attr/textAppearanceMedium"  

      android:text="Centimeter"       

 android:id="@+id/textView"       

 android:layout_alignParentTop="true"       

 android:layout_alignParentLeft="true"       

 android:layout_alignParentStart="true"       

 android:layout_marginTop="48dp" />

    <EditText       

 android:layout_width="wrap_content"     

   android:layout_height="wrap_content"     

   android:inputType="number"      

  android:ems="10"        

android:id="@+id/editText"   

     android:layout_alignBottom="@+id/textView"  

      android:layout_toRightOf="@+id/textView"  

      android:layout_toEndOf="@+id/textView"      

  android:layout_marginLeft="40dp"   

     android:layout_marginStart="40dp" />

    <TextView       

 android:layout_width="wrap_content"      

  android:layout_height="wrap_content"     

   android:textAppearance="?android:attr/textAppearanceMedium"    

    android:text=" Inches"        android:id="@+id/textView2"   

     android:layout_below="@+id/textView"       

 android:layout_alignParentLeft="true"   

     android:layout_alignParentStart="true"  

      android:layout_marginTop="40dp" />

    <EditText        

android:layout_width="wrap_content"   

     android:layout_height="wrap_content"  

      android:inputType="number"       

 android:ems="10"       

 android:id="@+id/editText2"   

     android:layout_alignBottom="@+id/textView2"

        android:layout_alignLeft="@+id/editText"    

    android:layout_alignStart="@+id/editText" />

    <Button

        android:layout_width="wrap_content" 

       android:layout_height="wrap_content"      

  android:text="Convert "       

 android:id="@+id/button"        

android:layout_centerVertical="true"      

  android:layout_centerHorizontal="true" />

</RelativeLayout>

then java code .------------->>>>>>>>>

package com.example.kogta.imagesave;


import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageView;



public class MainActivity extends AppCompatActivity {

//ImageView image;    @Override    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

//image=(ImageView)findViewById(R.id.image);

        final EditText editTextcenti=(EditText)findViewById(R.id.editText);

        final EditText editTextinch=(EditText)findViewById(R.id.editText2);

        Button button=(Button)findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {

            @Override            public void onClick(View v) {

                double centimeter=Double.valueOf( editTextcenti.getText().toString());

                double inches= centimeter * 0.393700787;

                editTextinch.setText(String.valueOf(inches));

            }
});



}

    }












the App is Done .Its so simple so just try it your self