Lets Start with a simple Project,
 Functions : Enter A Text in Edit Text, On Click of a Button show the Text in Text view

 Open Eclipse >> File >> New >> Other >> Android(folder) >> Android Project >>Next>>
Enter Project name >> "MyFirstProject" without Quotes >>Next  >> Select any available Target(2.1 recommended) >> Next
Android, Eclipse

Give Package name, Package name should be more that two words seperated by "."
Example :   vee.sample.demo

Hit Finish.

Open Your Project >> res >> main.xml >> Hit Enter

Drag & Drop the following
  1.  "Edit Text" form Text Fields
  2.  "Button" from Form Widgets
  3.  "Text View" from Form Widgets
You will get this

Let us do few modifications do Get This to look better.
In Edit Text add
android:hint="Enter Text Here"

Change the Text
"Button" to "Click me"

In TextView Add
android:hint="Output Is Displayed here"

Open src >> vee.sample.demo >> MyFirstProjectActivity.java

Modify like this, the explanations are Given in form of Comments

For Easy View see Here--> MyFirstProjectActivity.java

package vee.sample.demo;

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;

public class MyFirstProjectActivity extends Activity {

 // Declaration Starts here
 // we have added 3 objects EditText, Button, TextView

 EditText e;
 Button b;
 TextView t;

 /** Called when the activity is first created. */
 public void onCreate(Bundle savedInstanceState) {

  // Connecting Objects in xml to declared Variables

  e = (EditText) findViewById(R.id.editText1); // Edittext should be
              // connected to Edittext
              // only
  b = (Button) findViewById(R.id.button1);
  t = (TextView) findViewById(R.id.textView2); // Output Should be
              // displayed below
              // Button, it's id is
              // android:id="@+id/textView2"

  // On clicking the Button, fetch the values entered in Edittext
  // Store in temp string
  // display in TextView

  // type "b.seton" & Hit Ctrl+Space, then type "new" hit Ctrl+Space
  // u will get the below easily

  b.setOnClickListener(new OnClickListener() {

   public void onClick(View v) {
    // TODO Auto-generated method stub
    // Function Goes here

    // Fetch the Values from EditText
    String temp = e.getText().toString();

    // set temp values to TextView




Run the Project as Android Application.