Android - คือผมจะรับสตริงเข้ามาทางแอพแอนดรอยนะครับ กดเข้ามานะครับ

package com.example.testing;



import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends Activity {

	private EditText getdata;
	private Button Ok;
	private Button Show;
	private ArrayList<String> data;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		
		// view matching
		
		getdata = (EditText) findViewById(R.id.editText1);
		Ok = (Button) findViewById(R.id.gettext);
		Show = (Button) findViewById(R.id.Showdata);
		
		
		data = new ArrayList<String>();
		
		Ok.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				data .add(getdata.getText().toString());
			}
		});
		
		Show.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				
				for(int i =0; i < data.size(); i++){
					
					Toast.makeText(getApplicationContext(),""+data.get(i), Toast.LENGTH_SHORT).show();
					
				}
				
			}
		});
		
	
	
	}

}

<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=".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="49dp"
        android:ems="10" />

    <Button
        android:id="@+id/Showdata"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/gettext"
        android:layout_centerVertical="true"
        android:text="โชว์ข้อมูล" />

    <Button
        android:id="@+id/gettext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/Showdata"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="15dp"
        android:text="บันทึก" />

</RelativeLayout>

package example.testing;

import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends Activity {

private EditText getdata;
private Button Ok;
private Button Show;
private ArrayList<String> data;
TextView textView1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


// view matching

getdata = (EditText) findViewById(R.id.editText1);
Ok = (Button) findViewById(R.id.gettext);
textView1 = (TextView)findViewById(R.id.textView1);

data = new ArrayList<String>();

Ok.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
data .add(getdata.getText().toString());
String myArr2;
myArr2 = data.toString();
textView1.setText(myArr2);
}
});

//Show.setOnClickListener(new OnClickListener() {

//@Override
//public void onClick(View v) {
// TODO Auto-generated method stub
	
//for(int i =0; i < data.size(); i++){

//Toast.makeText(getApplicationContext(),""+data.get(i), Toast.LENGTH_SHORT).show();

//}

//}
//});



}

}