having trouble with an EditText control box

in my application I have 3 edit boxes where the user enters in text. After the text is entered into the three boxes, I want to press the save button and have the data saved. I am trying to figure out how to do that and all the reading that I am doing I am not finding it. Can someone give me some guidance??

Here is my code so far from the java file:

package com.example.gasfillup;

import android.app.Activ开发者_Go百科ity;
import android.app.TabActivity;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TextView;

public class GasFillup extends TabActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        TabHost mTabHost = getTabHost();

        mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator("Car Info").setContent(R.id.panel1));
        mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator("Fillup Info").setContent(R.id.textview2));
        mTabHost.addTab(mTabHost.newTabSpec("tab_test3").setIndicator("Gas Milage").setContent(R.id.textview3));
        mTabHost.addTab(mTabHost.newTabSpec("tab_test4").setIndicator("Stats").setContent(R.id.textview4));       
        mTabHost.setCurrentTab(0);

        TextView tv = (TextView)findViewById(R.id.panel1);
        String txt = tv.getText().toString();


    }
}

Please help me understand what I am doing wrong ... I want to be able to understand what I don't know ...

ironmantis7x

You don't appear to have a Button declared. You will also need to set an onClickListener on the Button that actually performs the data save. You also haven't said where you want the data to be saved to, SharedPreferences, a File, database etc.