How to get EditText box entered value on android application

EditText box entered value is accessible by getText() function. This function is used with combination of EditText box id assign variable. After get EditText box value i am showing this selected value on Toast message through button click event.

Code for MainActivity.java file .

package com.example.getenterededittextboxvalue;

import android.app.Activity;

import android.os.Bundle;

import android.text.Editable;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends Activity {

    EditText GetvalueBox;

    Button AccessButton;

    Editable HoldValue;

    

@Override   

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        GetvalueBox = (EditText)findViewById(R.id.editText1);

        AccessButton = (Button)findViewById(R.id.access_value);

        

        AccessButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

HoldValue = GetvalueBox.getText();

Toast.makeText(MainActivity.this, HoldValue, Toast.LENGTH_SHORT).show();

}

});

        

    }

}

Code for activity_main.xml file .

<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.getenterededittextboxvalue.MainActivity" >

     <EditText

        android:id="@+id/editText1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="47dp"

        android:ems="10"

        android:inputType="textPersonName" >

       

    </EditText>

    <Button

        android:id="@+id/access_value"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignRight="@+id/editText1"

        android:layout_below="@+id/editText1"

        android:layout_marginTop="45dp"

        android:text="Access EditText Box value" />

</RelativeLayout>